List of Horizon episodes

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Horizon is a current and long-running BBC popular science and philosophy documentary programme. Series one was broadcast in 1964 and as of August 2014 is in its 51st series. Over 1200 episodes have been broadcast (including specials) with an average of 24 episodes per series during the 50 year run.

  • 1964–1970 – 207 episodes
  • 1970–1980 – 284 episodes
  • 1980–1990 – 233 episodes
  • 1990–2000 – 186 episodes
  • 2000–2010 – 174 episodes

Special editions[edit]

Title Original broadcast date Episode
"The Great British Drought" 26 May 1976 (1976-05-26) 00x01
Documentary on the likely effects of the drought in Britain.
"Darwin's Dream" 23 September 1977 (1977-09-23) 00x02
"The Case of the Ancient Astronauts" 25 November 1977 (1977-11-25) 00x03
Horizon investigates whether first contact with aliens has already occurred. The publication of 'Chariots of the Gods?' by Erich von Daniken is central to this documentary and some of von Daniken's claims of evidence of extra-terrestrial visitations, such as the Palenque slab, the Nazca lines, Easter Island Moai and the Great Pyramid of Giza are investigated and debunked by archeologists including Thor Heyerdahl. It concludes that von Daniken's thesis relies on unrelated facts, false similarities and phoney evidence. Available as a PBS' NOVA episode, released in 1978. U.S. narration by Don Wescott.
"The Mind's Eye" 28 January 1980 (1980-01-28) 00x04
"25 Years in Space" 25 December 1982 (1982-12-25) 00x05
A history of space exploration starting from the dawn of the space age in 1957 with the launch of Sputnik to the Space Shuttle Columbia. Mainly using excerpts from newsreels and television programmes the story covers Laika, Jupiter-C, Yuri Gagarin, Alan Shepard, John Glenn, Alexey Leonov, Edward White, Apollo 1, Vladimir Komarov, Apollo 8, Apollo 10, Apollo 11, Apollo 13, Apollo 17, Skylab, Salyut and Voyager 1. It includes interviews and broadcasts from Sir Bernard Lovell, James Burke, Frank Borman, Brian Aldiss, Hugh Trevor-Roper, Barbara Ward, Carl Sagan and Patrick Moore.
"Biology at War: The Mystery of Yellow Rain" 15 May 1984 (1984-05-15) 00x06
Report from Laos, Thailand and Kampuchea on the alleged use of biological warfare in these countries by the USSR.
"Beyond the Moon" 21 July 1984 (1984-07-21) 00x07
Report, using material of the time, of the 1969 moon landing, and discussion on the USA's space programme.
"Biology at War: A Plague in the Wind" 29 October 1984 (1984-10-29) 00x08
Investigates the history of germ warfare and the threat of a new biological arms race.
"Halley's Comet: The Apparition" 25 November 1985 (1985-11-25) 00x09
Report on the passage of the European Giotto spacecraft as it passes through the tail of Halley's Comet.
"Life Story" 27 April 1987 (1987-04-27) 00x10
"Doctors to Be, 1: Trial by Interview" 23 April 1988 (1988-04-23) 00x11
Part of the Doctors to Be series following the careers of medical students. Two sixth formers face the interview panel for places at St Mary's Hospital Medical School.
"Doctors to Be, 2: The Knowledge" 24 April 1988 (1988-04-24) 00x12
Part of the Doctors to Be series. October 1985. The medical students face their first exams.
"Doctors to Be, 3: Welcome to the Real World" 25 April 1988 (1988-04-25) 00x13
Part of the Doctors to Be series. After two years of medical training, the medical students are put into the 'real world' of a surgical ward at St Mary's Hospital, Paddington.
"The Quest for Tannu Tuva" 4 July 1988 (1988-07-04) 00x14
Shortly before his death in Feb. 1988, the scientist Richard Feynman talked about his ten year fascination with Tannu Tuva, a Shangri-La on the edge of Mongolia, which very few westerners have ever seen. Also released by PBS' NOVA months later.
"Making an Honest Fiver" 6 June 1990 (1990-06-06) 00x15
Looks at the manufacturing processes involved in the production of a new five pound note due to be launched in June 1990. Considers the design and production of currency, and the intricate techniques developed to prevent forgeries.
"Red Star in Orbit, 1: The Invisible Spaceman" 7 December 1990 (1990-12-07) 00x16
First in a three-part Horizon Special series on the Soviet manned space programme, looking at the story of the projects, cosmonauts and engineers involved.
"Red Star in Orbit, 2: The Dark Side of the Moon" 14 December 1990 (1990-12-14) 00x17
Second in a three-part Horizon Special series on the Soviet manned space programme, looking at the story of the projects, cosmonauts and engineers involved.
"Red Star in Orbit, 3: The Mission" 21 December 1990 (1990-12-21) 00x18
Third in a three-part Horizon Special series on the Soviet manned space programme, this one concentrating on the story of the two Soviet cosmonauts who risked their lives earlier this year in a space walk to try and repair their stricken craft, as well as anecdotes from veteran cosmonauts.
"A Close Encounter of the Second Kind" 10 July 1992 (1992-07-10) 00x19
"Hide and Seek in Iraq" 23 August 1992 (1992-08-23) 00x20
"Assault on the Male" 31 October 1993 (1993-10-31) 00x21
"Twice Born" 14 February 1995 (1995-02-14) 00x22
"The Science of Star Trek" 26 August 1996 (1996-08-26) 00x23
"The Invisible Enemy (BSE Special episode)" 17 November 1996 (1996-11-17) 00x24
"The Human Experiment (BSE Special episode)" 18 November 1996 (1996-11-18) 00x25
"Ice Mummies 1: The Ice Maiden" 30 January 1997 (1997-01-30) 00x26
"Ice Mummies 2: A Life in Ice" 6 February 1997 (1997-02-06) 00x27
"Ice Mummies 3: Frozen in Heaven" 13 February 1997 (1997-02-13) 00x28
"Computers Don't Bite, Inside the Internet" 17 May 1997 (1997-05-17) 00x29
"Destination Mars" 4 July 1997 (1997-07-04) 00x30
The second of two programmes about the Red Planet. Traces the course of the planned manned mission to Mars, which could take place within the next twenty years. Focuses on the numerous complications involved in such a mission, from the potential physical damage caused to cosmonauts by their zero-gravity surroundings to the psychological pressures involved in the 30 month-long trip.
"Mars, Death or Glory?" 5 July 1997 (1997-07-05) 00x31
"The Ice Forms (Antarctica Special Edition Part 1)" 30 October 1997 (1997-10-30) 00x32
The first of Kate O'Sullivan's trilogy of films about Antarctica. Antarctica's polar ice sheet is the highest, coldest, windiest, driest and most unforgiving place on Earth. The average temperature near the South Pole is minus 49 degrees C, winds reach over 2000km an hour and water in liquid form is scarce. Yet this hostile environment has now become the last frontier on Earth and, each year, a population of 3,000 human colonists tries to settle here. This film focuses on the risks and rigours of living in this inhospitable continent.
"The Ice Lives (Antarctica Special Edition Part 2)" 6 November 1997 (1997-11-06) 00x33
The second of Kate O'Sullivan's Antarctic trilogy. The mystery of what formed the vast continent of Antarctica has obsessed explorers since Shackleton and Scott. Piecing together evidence from the tiny amount of rock exposed above the ice, geologists have come up with a radical theory that may also predict how Antarctica will change in the future.
"The Ice Melts (Antarctica Special Edition Part 3)" 13 November 1997 (1997-11-13) 00x34
Third of Kate O'Sullivan's Antarctica trilogy. This final film is a detective story unravelled by scientists scattered on the ice sheet, trying to understand the mechanisms that control it.
"Darwin, The Legacy" 29 March 1998 (1998-03-29) 00x36
"Longitude" 4 January 1999 (1999-01-04) 00x37
"Born to Be Fat (Fat Files Special Edition Part 1)" 7 January 1999 (1999-01-07) 00x38
First of three documentaries taking a look at the issue of obesity. 1 of 3: This programme attempts to establish why some people are destined to be big.
"Fixing Fat (Fat Files Special Edition Part 2)" 14 January 1999 (1999-01-14) 00x39
The second in a trilogy of programmes studying obesity. As the search for drugs to reduce appetite by resetting control mechanisms in the brain continues, new research uncovers the powerful food ingredients that could win the slimming war. The programme examines the lengths to which some overweight people are prepared to go in attempting to reduce their size, from stomach stapling to the ingestion of dangerous drugs.
"Living on Air (Fat Files Special Edition Part 3)" 21 January 1999 (1999-01-21) 00x40
Last of a trilogy of programmes studying obesity. Examines some ground-breaking research into eating disorders like anorexia and bulimia, trying to establish if they are inherited. The discovery of a group of anorexics in a most unlikely place seems to put paid to the theory that the disease is the product of western's society's increased levels of stress.
"Atlantis Uncovered (Atlantis Special Edition Part 1)" 28 October 1999 (1999-10-28) 00x41
"Atlantis Reborn (Atlantis Special Edition Part 2)" 4 November 1999 (1999-11-04) 00x42
"Living Forever (Life and Death in the 21st Century Special Edition Part 1)" 4 January 2000 (2000-01-04) 00x43
"Future Plagues (Life and Death in the 21st Century Special Edition Part 2)" 5 January 2000 (2000-01-05) 00x44
"Designer Babies (Life and Death in the 21st Century Special Edition Part 3)" 6 January 2000 (2000-01-06) 00x45
This episode originally aired on 7th April 1999 under the title Designer Babies.[1]
"Inside the Internet" 10 June 2000 (2000-06-10) 00x46
"Science Zone, Aliens from Mars" 27 June 2000 (2000-06-27) 00x47
"Life on Mars (Mars Special Episode Part 1)" 11 January 2001 (2001-01-11) 00x48
"Destination Mars (Mars Special Episode Part 2)" 18 January 2001 (2001-01-18) 00x49
"What Sank the Kursk?" 8 August 2001 (2001-08-08) 00x50
"First Olympian" 23 July 2004 (2004-07-23) 00x51
"Winning Gold in 2012" 18 March 2006 (2006-03-18) 00x52
"Everest: Doctors in the Death Zone Part 1" 23 September 2007 (2007-09-23) 00x53
"Everest: Doctors in the Death Zone Part 2" 30 September 2007 (2007-09-30) 00x54
"Lost Horizons: The Big Bang" 4 September 2008 (2008-09-04) 00x55
The theory that the universe began from nothing has not always been accepted with the same conviction it is today. Professor Jim Al-Khalili looks through 50 years of the BBC science archive to explain how scientists have pieced together the popular theory by using curious horn-shaped antennae, U-2 spy planes and particle accelerators.
"The Big Bang Machine" 4 September 2008 (2008-09-04) 00x56
"40 Years on the Moon" 9 July 2009 (2009-07-09) 00x57
"Pandemic: A Horizon Guide" 9 August 2009 (2009-08-09) 00x58

In the wake of the swine flu outbreak, virologist Dr Mike Leahy uses over 50 years of the BBC archive to explore the history of pandemics – infectious diseases caused by bacteria, viruses and parasites.

Inspired by the Horizon back catalogue, he tells the extraordinary story of smallpox, one of the most violent killers in history, as well as the success of mass vaccination and the global politics of malaria. Through the lens of television the programme charts our scientific progress from the early steps in understanding AIDS to the code-cracking of SARS and deadly predictions of bird flu.

Each pandemic episode tells us something about the world and our place within it. In his journey through the ages Dr Leahy charts science's ongoing battle with nature and questions which one is winning.
"Mars: A Horizon Guide" 15 November 2009 (2009-11-15) 00x59
"Diet: A Horizon Guide" 7 January 2010 (2010-01-07) 00x60
"The End of God?: A Horizon Guide to Science and Religion" 21 September 2010 (2010-09-21) 00x61
Historian Dr Thomas Dixon explores BBC archive footage detailing the age-old conflict between religion and science. He highlights interviews with a diverse range of theorists, including American creationists and physicists in Geneva working with the Large Hadron Collider, and asks whether the expansion of knowledge has left no room for the concept of God in the modern world.
"What Makes Us Clever? A Horizon Guide to Intelligence" 6 January 2011 (2011-01-06) 00x62
Delving into the Horizon archives, Dallas Campbell discovers how our understanding of intelligence has transformed over the last century.
"The End of the World? A Horizon Guide to Armageddon" 17 March 2011 (2011-03-17) 00x63
Our understanding of the world around us is better now than ever before. But are we any closer to knowing how its all going to end? Dallas Campbell delves into the Horizon archive to discover how scientists have tried to predict an impending apocalypse – from natural disaster to killer disease to asteroid impact – and to ask: when Armageddon arrives, will science be able to save us?
"Japan Earthquake: A Horizon Special with Iain Stewart" 27 March 2011 (2011-03-27) 00x64
A look at the powerful forces that created the devastating Japanese earthquake.
"The Space Shuttle: A Horizon Guide" 10 April 2011 (2011-04-10) 00x65
Coverage from three decades of programmes to present a biography of the space shuttle programme, due to be decommissioned in 2011.
"Carrot or Stick: A Horizon Guide to Raising Kids" 11 August 2011 (2011-08-11) 00x66
Child psychologist Laverne Antrobus uses excerpts from the Horizon archive to demonstrate how science has shaped parenting and education methods over the past 50 years. She considers which approach is best for raising children, explores how extreme behaviour can be explained by neurological problems, and finds out the effects of a child-centred environment on learning.
"Extinct: A Horizon Guide to Dinosaurs" 21 September 2011 (2011-09-21) 00x67
Dallas Campbell explores how mankind's understanding of dinosaurs has developed since the 1970s. He reveals how technological advances led to scientists revising their theories about how the creatures might once have lived, as well as gaining new insights into the reasons for their extinction. The presenter also explores the genetic links between modern birds and the ancient lizards.
"The Hunt for the Higgs" 9 January 2012 (2012-01-09) 00x68
Jim Al-Khalili follows the efforts of particle physicists at the CERN research laboratory near Geneva, Switzerland, to find the Higgs particle, which is believed to give mass to everything in the universe. He explains why scientists believe discovering it could help answer fundamental questions about the nature of existence, and reveals why their theories are based on the idea of symmetry.
"Woof! A Horizon Guide to Dogs" 1 March 2012 (2012-03-01) 00x69
Dallas Campbell examines films from the Horizon archive to discover what science can teach people about dogs. He investigates the origins of domestic breeds and learns about the role humans played in shaping canine evolution, before asking why the bond between mankind and dogs is particularly strong – and whether it can be improved in the future.
"Stuff: A Horizon Guide to Materials" 19 April 2012 (2012-04-19) 00x70
Engineer and broadcaster Jem Stansfield explores the Horizon archives to discover how the programme has covered developments in material science during the past five decades. He learns how scientists have created new materials and found fresh uses for old ones, and explores how advances including superconductors and silicon chips have changed mankind's understanding of the world.
"The Transit of Venus: A Horizon Special" 5 June 2012 (2012-06-05) 00x71
Liz Bonnin explores the transit of Venus, an event which takes place just after 11pm tonight and offers a rare opportunity to see the planet passing across the face of the sun. She explains why the orbits of Venus and Earth mean they are only aligned twice every century, and investigates what studies of Venus have revealed about life on Earth. Solar physicist Lucie Green investigates James Cook's 1769 voyage to Tahiti to observe the transit, and oceanographer Helen Czerski explores how Earth and Venus came to be so different.
"Blink: A Horizon Guide to the Senses" 11 July 2012 (2012-07-11) 00x72
Kevin Fong looks back through 40 years of Horizon archives to explore what science has revealed about methods of perception. He discovers why babies use touch more than any other sense, how vision can easily be tricked, and the ways technological advancements are getting closer to being able to replace human faculties if they fail.
"Immortal? A Horizon Guide to Ageing" 17 July 2012 (2012-07-17) 00x73
Veteran presenter Johnny Ball looks back over the 45 years that both he and TV series Horizon have been appearing on air to find out what scientists have learnt about how and why people grow old. He charts developments from macabre early claims of rejuvenation to the latest breakthroughs, and asks if the dream of immortality is any closer to coming true.
"The Final Frontier? A Horizon Guide to the Universe" 17 October 2012 (2012-10-17) 00x74
Dallas Campbell charts scientific breakthroughs that have transformed how the universe is understood, using footage from the Horizon archives which stretch back almost 50 years. He explores subjects including Einstein's concept of spacetime, alien planets and extra dimensions, and discovers each advance reveals new mysteries to be investigated.
"Mend Me: A Horizon Guide to Transplants" 27 March 2013 (2013-03-27) 00x75
The extraordinary odds doctors and patients have had to overcome to achieve amazing breakthroughs in transplant surgery, including full face transplants and growing organs in the laboratory. Michael Mosley identifies some of the key turning points and explores how far science can go in a bid to prolong life.
"Tomorrow's World: A Horizon Special" 11 April 2013 (2013-04-11) 00x76
Liz Bonnin delves into the world of inventors and innovations, revealing the people and technologies set to transform life in the 21st century. She meets some of the world's foremost visionaries, mavericks and dreamers, from the entrepreneurs who are the driving force behind a new space race to Andre Geim, a Nobel Prize-wining physicist leading a nanotech revolution.
"What's Killing Our Bees? A Horizon Special" 2 August 2013 (2013-08-02) 00x77
Bees are worth £430 million to Britain's agriculture sector and a third of UK food is reliant on pollination, but their numbers have been falling dramatically. In this film, journalist and beekeeper Bill Turnbull examines the array of conflicting evidence in a bid to determine what is responsible for the decline and meets scientists who are fitting radar transponders to the insects to establish why numbers are falling.
"Sex: A Horizon Guide" 11 September 2013 (2013-09-11) 00x78
Professor Alice Roberts investigates how science came to understand sex - a simple word for a very complex set of desires, including individual passions, wants and emotions. She looks at how the world of science has striven to solve people's sexual problems, and searched for ways of improving performance.
"Impact! A Horizon Guide to Plane Crashes" 14 October 2013 (2013-10-14) 00x79
It's a macabre paradox, but almost every advance in aviation safety has been driven by a crash. After every crash, investigators determine its cause and scientists make every effort to ensure the same mistakes never happen again. Dallas Campbell delves into the Horizon archives to chart the deadly disasters that have helped make air travel today the safest it has ever been.
"Impact! A Horizon Guide to Car Crashes" 21 October 2013 (2013-10-21) 00x80
In the 1950s up to 8,000 people died every year on the roads in this country - a truly horrific figure. Thankfully it has now fallen to around 2,000 a year - still a terrible toll, but a vast improvement, particularly given the increase in cars on the road.
"Comet of the Century: A Horizon Special" 23 November 2013 (2013-11-23) 00x81
Comet Ison is due to make its closest approach to the sun on November 28 and will be visible in both the evening and morning skies during December if it survives its brush with the star. The programme examines how Ison's tail of vaporised gas and water could give insights into some of the greatest mysteries of science, including the origin of the solar system and whether Earth's water came from similar celestial objects.

Revisited[edit]

Horizon Revisited was broadcast on BBC Four and shown between 2002 and 2003. Each of the seven episodes takes information and clips from previous edition of Horizon and updates them with current thinking on each of the topics at hand. These are similar in format to the current 'Horizon Guide' special episodes.

Title Original broadcast date Episode
"Horizon Revisited, A Tale of Two Feathers" 18 October 2002 (2002-10-18) 00x01
"Horizon Revisited, Mega Tsunami: Coming to a Beach near You" 25 October 2002 (2002-10-25) 00x02
"Horizon Revisited, Back to the Dark Ages" 29 November 2002 (2002-11-29) 00x03
"Horizon Revisited, Dawn of the Dinosaurs" 6 December 2002 (2002-12-06) 00x04
"Horizon Revisited, You Do as You Are Told: Jonathan Miller and the Milgram Experiment" 27 February 2003 (2003-02-27) 00x05
"Horizon Revisited, The Human Genome Project" 6 March 2003 (2003-03-06) 00x06
"Horizon Revisited, Michael Adler on AIDS" 13 March 2003 (2003-03-13) 00x07

Series 01: 1964–1965[edit]

Title Original broadcast date Episode
"The World of Buckminster Fuller" 2 May 1964 (1964-05-02) 01x01
"Pesticides and Posterity" 30 May 1964 (1964-05-30) 01x02
"A Candle to Nature" 27 June 1964 (1964-06-27) 01x03
"Strangeness Minus Three" 25 July 1964 (1964-07-25) 01x04
Horizon interviews physicists on their theories of the structure of matter. Richard Feynman, Murray Gell-Mann, Yuval Ne'eman and Nicholas Samios explain their current understanding of the Omega-minus particle (Omega baryon).
"The Air of Science" 22 August 1964 (1964-08-22) 01x05
"The Knowledge Explosion" 21 September 1964 (1964-09-21) 01x06
"The Amateur Scientist" 19 October 1964 (1964-10-19) 01x07
"Tots and Quots and Woodgerie" 16 November 1964 (1964-11-16) 01x08
"Professor J.B.S. Haldane, Obituary" 1 December 1964 (1964-12-01) 01x09
"Science, Toys and Magic" 14 December 1964 (1964-12-14) 01x10
"Learning from Machines" 6 January 1965 (1965-01-06) 01x11
"The Technique of Change" 20 January 1965 (1965-01-20) 01x12
"Star Gazers" 3 February 1965 (1965-02-03) 01x13
"Science and Art" 17 February 1965 (1965-02-17) 01x14
"The Great Computer Scandal / H-Bomb Detectors" 3 March 1965 (1965-03-03) 01x15
"Forbidden Events / I am a Madman" 17 March 1965 (1965-03-17) 01x16
"Restless Genius / Faster, Farther, Higher" 31 March 1965 (1965-03-31) 01x17
"Other Side of the Pill" 14 April 1965 (1965-04-14) 01x18
"The Big Smoke / The Model Makers" 12 May 1965 (1965-05-12) 01x19
"The Long Slide / Men with Gills" 26 May 1965 (1965-05-26) 01x20
"Men and Sharks / Sir Henry Dale, OM, FRS" 9 June 1965 (1965-06-09) 01x21
"The Brain Gain / The Sudden Night / Learning to Speak" 23 June 1965 (1965-06-23) 01x22
"Dr. Joseph Needham / Mariner 4" 14 July 1965 (1965-07-14) 01x23
"Science Fiction : Science Fact / Alone and Unarmed" 28 July 1965 (1965-07-28) 01x24
"Certain of Uncertainty / State of Nature" 11 August 1965 (1965-08-11) 01x25
"Time Stood Still / Weighty Matters" 25 August 1965 (1965-08-25) 01x26
"Fuel for the Future / Collector's Piece" 8 September 1965 (1965-09-08) 01x27
"Let Newton Be" 22 September 1965 (1965-09-22) 01x28

Series 02: 1965–1966[edit]

Title Original broadcast date Episode
"Special Senses" 10 October 1965 (1965-10-10) 02x01
"An Affair of the Heart" 24 October 1965 (1965-10-24) 02x02
"Ten Thousand Tombs" 7 November 1965 (1965-11-07) 02x03
"Toil, Sweat & Tears" 21 November 1965 (1965-11-21) 02x04
"The Big Dishes and the Living Stream" 5 December 1965 (1965-12-05) 02x05
19 December 1965 (1965-12-19) 02x06
2 January 1966 (1966-01-02) 02x07
16 January 1966 (1966-01-16) 02x08
"A Man of Two Visions" 30 January 1966 (1966-01-30) 02x09
13 February 1966 (1966-02-13) 02x10
27 February 1966 (1966-02-27) 02x11
13 March 1966 (1966-03-13) 02x12
27 March 1966 (1966-03-27) 02x13
10 April 1966 (1966-04-10) 02x14
24 April 1966 (1966-04-24) 02x15
"Man in Space" 8 May 1966 (1966-05-08) 02x16
22 May 1966 (1966-05-22) 02x17
5 June 1966 (1966-06-05) 02x18
19 June 1966 (1966-06-19) 02x19
3 July 1966 (1966-07-03) 02x20
"The Lonely Children" 17 July 1966 (1966-07-17) 02x21
31 July 1966 (1966-07-31) 02x22
11 September 1966 (1966-09-11) 02x23
25 September 1966 (1966-09-25) 02x24

Series 03: 1966–1967[edit]

Title Original broadcast date Episode
"Ten Years in the Antarctic" 10 October 1966 (1966-10-10) 03x01
"The Athlete" 24 October 1966 (1966-10-24) 03x02
"From Peenemunde to the Moon" 7 November 1966 (1966-11-07) 03x03
21 November 1966 (1966-11-21) 03x04
"The Structure of Life" 5 December 1966 (1966-12-05) 03x05
"Hand Me My Sword, Humphrey" 25 December 1966 (1966-12-25) 03x06
"Sons of Cain" 17 January 1967 (1967-01-17) 03x07
"How Best to Make a Man, How Best to Make a Scientist" 14 February 1967 (1967-02-14) 03x08
"Dynamo, The Life of Michael Faraday" 28 February 1967 (1967-02-28) 03x09
"Migraine" 14 March 1967 (1967-03-14) 03x10
"How Safe Is Surgery?" 28 March 1967 (1967-03-28) 03x11
"The Shape of War to Come" 25 April 1967 (1967-04-25) 03x12
"Memory" 9 May 1967 (1967-05-09) 03x13
"Masters of the Desert" 23 May 1967 (1967-05-23) 03x14
"Cancer, The Smoker's Gamble" 20 June 1967 (1967-06-20) 03x15
"Science and the Supernatural" 4 July 1967 (1967-07-04) 03x16
"Hypnosis" 18 July 1967 (1967-07-18) 03x17

Series 04: 1967–1968[edit]

Title Original broadcast date Episode
"The War of the Boffins" 12 September 1967 (1967-09-12) 04x01
"Aspects of Alcohol" 26 September 1967 (1967-09-26) 04x02
"Lords of the Sea" 10 October 1967 (1967-10-10) 04x03
"Will Art Last?" 24 October 1967 (1967-10-24) 04x04
"Air Safety, The Unknown Factor" 7 November 1967 (1967-11-07) 04x05
"The Life and Death of the Pine Processionary" 21 November 1967 (1967-11-21) 04x06
"Koestler on Creativity" 5 December 1967 (1967-12-05) 04x07
"The World of Ted Serios" 12 December 1967 (1967-12-12) 04x08
"Professor in Toyland" 24 December 1967 (1967-12-24) 04x09
"An Ingenious Man, Sir H. John Baker" 2 January 1968 (1968-01-02) 04x10
"Man's Best Friend" 30 January 1968 (1968-01-30) 04x11
"Once a Junkie" 13 February 1968 (1968-02-13) 04x12
"Town Traffic and Tomorrow" 27 February 1968 (1968-02-27) 04x13
"The Man Makers" 12 March 1968 (1968-03-12) 04x14
"Man in Search of Himself" 26 March 1968 (1968-03-26) 04x15
"Investigating Murder" 9 April 1968 (1968-04-09) 04x16
"The Equation of Murder" 7 May 1968 (1968-05-07) 04x17

Series 05: 1968–1969[edit]

Title Original broadcast date Episode
"Lindemann Enigma" 12 September 1968 (1968-09-12) 05x01
Narrated by Christopher Chataway, the episode covered the achievements and failures of Churchill's war-time science advisor Professor Frederick Lindemann.[2]
"From Field to Factory" 19 September 1968 (1968-09-19) 05x02
"Comfort on Ageing" 26 September 1968 (1968-09-26) 05x03
"Experiments in War" 3 October 1968 (1968-10-03) 05x04
"African Medicine" 17 October 1968 (1968-10-17) 05x05
"The Broken Bridge" 24 October 1968 (1968-10-24) 05x06
Narrated by Christopher Chataway, the episode covered the methods of psychiatric therapist, Irene Kassorla [3]
"Children Without Words" 31 October 1968 (1968-10-31) 05x07
"Computer Revolution" 7 November 1968 (1968-11-07) 05x08
"Doctor's Dilemma" 14 November 1968 (1968-11-14) 05x09
"In the Matter of Dr Alfred Nobel" 21 November 1968 (1968-11-21) 05x10
"Wheels Within Wheels" 28 November 1968 (1968-11-28) 05x11
"Black Man – White Science" 5 December 1968 (1968-12-05) 05x12
"Hidden World" 12 December 1968 (1968-12-12) 05x13
"The Talgai Skull" 19 December 1968 (1968-12-19) 05x14
"Phantasmagoria, The Magic Lantern" 24 December 1968 (1968-12-24) 05x15
"Inside Every Fat Man..." 2 January 1969 (1969-01-02) 05x16
"If Only They Could Speak" 9 January 1969 (1969-01-09) 05x17
"The Miraculous Wonder, The Human Eye" 16 January 1969 (1969-01-16) 05x18
"The Year of the Locusts" 23 January 1969 (1969-01-23) 05x19
"The Gifted Child" 30 January 1969 (1969-01-30) 05x20
"The Last of the Polymaths" 6 February 1969 (1969-02-06) 05x21
"Music and the Mind" 13 February 1969 (1969-02-13) 05x22
"Report on V.D." 20 February 1969 (1969-02-20) 05x23
"The Drift from Science" 6 March 1969 (1969-03-06) 05x24
"Powers of Persuasion" 13 March 1969 (1969-03-13) 05x25
"The View from Space" 20 March 1969 (1969-03-20) 05x26
"The Unborn Patient" 27 March 1969 (1969-03-27) 05x27
"King Solomon's Garden" 10 April 1969 (1969-04-10) 05x28
"Muck Today – Poison Tomorrow" 24 April 1969 (1969-04-24) 05x29
"Shark" 1 May 1969 (1969-05-01) 05x30
"Technology and Self Determination" 15 May 1969 (1969-05-15) 05x31
"After Apollo" 22 May 1969 (1969-05-22) 05x32
"Discovery" 29 May 1969 (1969-05-29) 05x33
"Machines and People, Rt. Hon. A. Wedgwood-Benn" 5 June 1969 (1969-06-05) 05x34

Series 06: 1969–1970[edit]

Title Original broadcast date Episode
"Science on Safari" 15 September 1969 (1969-09-15) 06x01
"A True Madness" 22 September 1969 (1969-09-22) 06x02
"The Problem of Pain" 29 September 1969 (1969-09-29) 06x03
"Four Fast Legs and a Nose" 6 October 1969 (1969-10-06) 06x04
"Father of the Man" 13 October 1969 (1969-10-13) 06x05
"Master of the Microscope" 20 October 1969 (1969-10-20) 06x06
"CERN" 27 October 1969 (1969-10-27) 06x07
"Cancer" 10 November 1969 (1969-11-10) 06x08
"There's a Rhino in My Sugar" 17 November 1969 (1969-11-17) 06x09
"Fit to Live" 24 November 1969 (1969-11-24) 06x10
"Don't Cackle, Lay Eggs" 1 December 1969 (1969-12-01) 06x11
"How Much Do You Drink?" 8 December 1969 (1969-12-08) 06x12
"A Game of War" 15 December 1969 (1969-12-15) 06x13
"Bread" 22 December 1969 (1969-12-22) 06x14
"For the Safety of Mankind" 29 December 1969 (1969-12-29) 06x15
"Just Another World" 5 January 1970 (1970-01-05) 06x16
"Henry Royce, Mechanic" 12 January 1970 (1970-01-12) 06x17
"A Disease of Our Time, Stress" 19 January 1970 (1970-01-19) 06x18
"A Disease of Our Time, Heart Attacks" 26 January 1970 (1970-01-26) 06x19
"Sex and Sexuality" 2 February 1970 (1970-02-02) 06x20
"Whose Coast?" 16 February 1970 (1970-02-16) 06x21
"A Much Wanted Child" 23 February 1970 (1970-02-23) 06x22
"The Expert Witness" 2 March 1970 (1970-03-02) 06x23
"After the Iron Age" 9 March 1970 (1970-03-09) 06x24
"Let the Therapy Fit the Crime" 16 March 1970 (1970-03-16) 06x25
"The World Outside" 23 March 1970 (1970-03-23) 06x26
"In the Beginning Was the Word" 30 March 1970 (1970-03-30) 06x27
"Drifting of the Continents" 13 April 1970 (1970-04-13) 06x28
"A Case of Priority" 20 April 1970 (1970-04-20) 06x29
"The Fretful Elements" 27 April 1970 (1970-04-27) 06x30
Covering the physics behind weather patterns and cloud-doctoring experiments.[4]
"One Man's Meat" 11 May 1970 (1970-05-11) 06x31
"Only Skin Deep" 6 July 1970 (1970-07-06) 06x32
"Wolves and Wolfmen" 13 July 1970 (1970-07-13) 06x33
"A Measure of Uncertainty" 10 August 1970 (1970-08-10) 06x34
"The Manhunters" 17 August 1970 (1970-08-17) 06x35
"Don't Get Sick in America" 24 August 1970 (1970-08-24) 06x36
"Crown of Thorns" 31 August 1970 (1970-08-31) 06x37

Series 07: 1970–1971[edit]

Title Original broadcast date Episode
"Noah's Ark in Kensington" 7 September 1970 (1970-09-07) 07x01
"Virus" 14 September 1970 (1970-09-14) 07x02
"Water, Water..." 21 September 1970 (1970-09-21) 07x03
"All Creatures Great and Small" 28 September 1970 (1970-09-28) 07x04
"Child for a Lifetime" 5 October 1970 (1970-10-05) 07x05
"Something for Our Children" 12 October 1970 (1970-10-12) 07x06
"Million Ton Tanker" 2 November 1970 (1970-11-02) 07x07
"The Insect War" 9 November 1970 (1970-11-09) 07x08
"The Savage Mind" 16 November 1970 (1970-11-16) 07x09
"Tanks" 23 November 1970 (1970-11-23) 07x10
"Mind the Machine" 30 November 1970 (1970-11-30) 07x11
"Square Pegs" 7 December 1970 (1970-12-07) 07x12
"Earthquakes, The City That Waits to Die" 14 December 1970 (1970-12-14) 07x13
"The Man Who Talks to Frogs" 21 December 1970 (1970-12-21) 07x14
"The Gargantuan Triumph of Science" 28 December 1970 (1970-12-28) 07x15
"Wildlife, The Last Great Battle" 4 January 1971 (1971-01-04) 07x16
"Great Ormond Street" 18 January 1971 (1971-01-18) 07x17
"A Bulldozer Through Heaven" 25 January 1971 (1971-01-25) 07x18
"Rumours of Wars" 1 February 1971 (1971-02-01) 07x19
"I'm Dependent, You're Addicted" 15 February 1971 (1971-02-15) 07x20
"Kuru, To Tremble with Fear" 22 February 1971 (1971-02-22) 07x21
"Due to Lack of Interest Tomorrow Has Been Cancelled" 8 March 1971 (1971-03-08) 07x22
"What Kind of Doctor?" 15 March 1971 (1971-03-15) 07x23
"A Nice Sort of Accident to Have" 22 March 1971 (1971-03-22) 07x24
"The Wood" 5 April 1971 (1971-04-05) 07x25
"The Measure of Man" 12 April 1971 (1971-04-12) 07x26
"Three Score Years and Then?" 26 April 1971 (1971-04-26) 07x27
"Darwin's Bulldog" 3 May 1971 (1971-05-03) 07x28
"The Secret" 10 May 1971 (1971-05-10) 07x29
"What Every Girl Should Know" 17 May 1971 (1971-05-17) 07x30
"Taste of Foods to Come" 24 May 1971 (1971-05-24) 07x31
"Looking for a Happy Landing" 31 May 1971 (1971-05-31) 07x32
"A Case of Depression" 7 June 1971 (1971-06-07) 07x33
"The Total War Machine" 14 June 1971 (1971-06-14) 07x34
"The Dinosaur Hunters" 21 June 1971 (1971-06-21) 07x35

Series 08: 1971–1972[edit]

Title Original broadcast date Episode
"Your Country Needs You" 27 September 1971 (1971-09-27) 08x01
"Rheumatism" 4 October 1971 (1971-10-04) 08x02
"If at First You Don't Succeed... You Don't Succeed" 11 October 1971 (1971-10-11) 08x03
"One Liverpool or Two?" 18 October 1971 (1971-10-18) 08x04
"Rutherford, Cavendish Today" 25 October 1971 (1971-10-25) 08x05
"The Fierce People" 1 November 1971 (1971-11-01) 08x06
"The Men Who Painted Caves" 15 November 1971 (1971-11-15) 08x07
"Crab Nebula" 22 November 1971 (1971-11-22) 08x08
"Can Venice Survive?" 29 November 1971 (1971-11-29) 08x09
"Willingly to School?" 6 December 1971 (1971-12-06) 08x10
"The Periscope War" 20 December 1971 (1971-12-20) 08x11
"Patently Absurd" 27 December 1971 (1971-12-27) 08x12
"The Missing Link" 3 January 1972 (1972-01-03) 08x13
"Navajo, The Last Red Indians" 10 January 1972 (1972-01-10) 08x14
"How Much Do You Smell?" 17 January 1972 (1972-01-17) 08x15
"Parasite of Paradise" 31 January 1972 (1972-01-31) 08x16
"The Day It Rained Periwinkles" 7 February 1972 (1972-02-07) 08x17
"Are You Doing This for Me Doctor?" 14 February 1972 (1972-02-14) 08x18
"How They Sold Doomsday" 21 February 1972 (1972-02-21) 08x19
"For Love or Money" 28 February 1972 (1972-02-28) 08x20
"Whales, Dolphins and Men" 6 March 1972 (1972-03-06) 08x21
"What Is Race?" 13 March 1972 (1972-03-13) 08x22
"Man Made Lakes of Africa" 20 March 1972 (1972-03-20) 08x23
"Survival in the Sahara" 27 March 1972 (1972-03-27) 08x24
"Mind over Body" 10 April 1972 (1972-04-10) 08x25
"Out of Volcanoes" 17 April 1972 (1972-04-17) 08x26
"The Wizard Who Spat on the Floor" 1 May 1972 (1972-05-01) 08x27
"Rail Crash" 8 May 1972 (1972-05-08) 08x28
"Do You Dig National Parks?" 22 May 1972 (1972-05-22) 08x29
"The Rat Man, Sigmund Freud" 5 June 1972 (1972-06-05) 08x30
"Sorry I Opened My Mouth" 12 June 1972 (1972-06-12) 08x31
"The Ways We Move" 3 July 1972 (1972-07-03) 08x32
"The Life That Lives on Man" 10 July 1972 (1972-07-10) 08x33
"Sex Can Be a Problem" 24 July 1972 (1972-07-24) 08x34
"The Surgery of Violence" 31 July 1972 (1972-07-31) 08x35

Series 09: 1972–1973[edit]

Title Original broadcast date Episode
"Hospital, Episode 1922" 12 October 1972 (1972-10-12) 09x01
"When Polar Bears Swam in the Thames" 19 October 1972 (1972-10-19) 09x02
"Making of an English Landscape" 26 October 1972 (1972-10-26) 09x03
"Shadows of Bliss" 2 November 1972 (1972-11-02) 09x04
"Billion Marsh" 9 November 1972 (1972-11-09) 09x05
"Do You Sincerely Want a Long Life?" 16 November 1972 (1972-11-16) 09x06
"The Making of a Natural History Film" 23 November 1972 (1972-11-23) 09x07
"Fire" 30 November 1972 (1972-11-30) 09x08
"Alaskan Pipe Dream" 7 December 1972 (1972-12-07) 09x09
"Their Life in Your Hands" 21 December 1972 (1972-12-21) 09x10
"Navigating Europe" 28 December 1972 (1972-12-28) 09x11
"Epidemic" 4 January 1973 (1973-01-04) 09x12
"Worlds in Collision" 11 January 1973 (1973-01-11) 09x13
"The Military Necessity" 18 January 1973 (1973-01-18) 09x14
"The Curtain of Silence" 25 January 1973 (1973-01-25) 09x15
"When the Breeding Has to Stop" 8 February 1973 (1973-02-08) 09x16
"Science Is Dead, Long Live Science" 15 February 1973 (1973-02-15) 09x17
"And Where Will the Children Play?" 1 March 1973 (1973-03-01) 09x18
"Acupuncture" 8 March 1973 (1973-03-08) 09x19
"What Time Is Your Body?" 22 March 1973 (1973-03-22) 09x20
"Survival of the Weakest" 5 April 1973 (1973-04-05) 09x21
"Red Sea Coral and the Crown of Thorns" 12 April 1973 (1973-04-12) 09x22
"Lumbered... With Back-Ache!" 26 April 1973 (1973-04-26) 09x23
"Airport" 3 May 1973 (1973-05-03) 09x24
"Do You Remember the Memory Man?" 17 May 1973 (1973-05-17) 09x25
"What a Waste!" 24 May 1973 (1973-05-24) 09x26
"The Laws of the Land" 7 June 1973 (1973-06-07) 09x27
"Do We Really Need the Railways?" 14 June 1973 (1973-06-14) 09x28
"The Telly of Tomorrow" 21 June 1973 (1973-06-21) 09x29
"How Does It Hurt?" 5 July 1973 (1973-07-05) 09x30
"A Scientist Looks at Religion" 9 August 1973 (1973-08-09) 09x31

Series 10: 1973–1974[edit]

Title Original broadcast date Episode
"In Search of Konrad Lorenz" 24 September 1973 (1973-09-24) 10x01
"Stretch Up Tall" 1 October 1973 (1973-10-01) 10x02
"Gilding the Lily" 8 October 1973 (1973-10-08) 10x03
"Black Holes of Gravity" 15 October 1973 (1973-10-15) 10x04
"What's so Big About Us?" 22 October 1973 (1973-10-22) 10x05
"The Steadfast Tin Soldier" 29 October 1973 (1973-10-29) 10x06
"Carry On Smoking" 5 November 1973 (1973-11-05) 10x07
"Air Crash Detective" 26 November 1973 (1973-11-26) 10x08
"An Element of Mystery" 3 December 1973 (1973-12-03) 10x09
"Digging Up the Future" 17 December 1973 (1973-12-17) 10x10
"Kula, A Reason for Giving" 24 December 1973 (1973-12-24) 10x11
"Crime Lab" 31 December 1973 (1973-12-31) 10x12
"A Matter of Self Defence" 7 January 1974 (1974-01-07) 10x13
"Bird Brain, The Mystery of Bird Navigation" 14 January 1974 (1974-01-14) 10x14
"Never Too Late to Learn" 21 January 1974 (1974-01-21) 10x15
"The Great Fish Hunt" 28 January 1974 (1974-01-28) 10x16
"Pedal Power" 4 February 1974 (1974-02-04) 10x17
"The Writing on the Wall" 11 February 1974 (1974-02-11) 10x18
"Where Did the Colorado Go?" 25 February 1974 (1974-02-25) 10x19
"The Future Goes Boom" 4 March 1974 (1974-03-04) 10x20
"Fusion, The Energy Promise" 11 March 1974 (1974-03-11) 10x21
"The First Ten Years" 22 April 1974 (1974-04-22) 10x22
"This Yankee Dodge Beats Mesmerism Hollow" 29 April 1974 (1974-04-29) 10x23
"The Hunting of the Quark" 6 May 1974 (1974-05-06) 10x24
"A Noah's Ark for Europe" 13 May 1974 (1974-05-13) 10x25
"Bridges, When It Comes to the Crunch" 3 June 1974 (1974-06-03) 10x26
"Search for Life" 10 June 1974 (1974-06-10) 10x27
"The Secrets of Sleep" 17 June 1974 (1974-06-17) 10x28
"Who Needs Skill?" 24 June 1974 (1974-06-24) 10x29
"Hills of Promise" 1 July 1974 (1974-07-01) 10x30
"The Race for the Double Helix" 8 July 1974 (1974-07-08) 10x31
"The Immigrant Doctors" 15 July 1974 (1974-07-15) 10x32
"Mines Minerals and Men" 22 July 1974 (1974-07-22) 10x33
"What Price Steak?" 29 July 1974 (1974-07-29) 10x34
"Listen and Be Loyal" 5 August 1974 (1974-08-05) 10x35
"Adam or Eve?" 19 August 1974 (1974-08-19) 10x36

Series 11: 1974–1975[edit]

Title Original broadcast date Episode
"An Unholy Scramble" 2 September 1974 (1974-09-02) 11x01
"You Do as You Are Told" 28 October 1974 (1974-10-28) 11x02
"The First Signs of Washoe" 4 November 1974 (1974-11-04) 11x03
"The Other Way" 11 November 1974 (1974-11-11) 11x04
"The Greatest Advance Since the Wheel" 25 November 1974 (1974-11-25) 11x05
"Joey" 9 December 1974 (1974-12-09) 11x06
"The Neglected Harvest" 16 December 1974 (1974-12-16) 11x07
"How on Earth Did They Do That?" 23 December 1974 (1974-12-23) 11x08
"The Lysenko Affair" 30 December 1974 (1974-12-30) 11x09
"The Cleanest Place in the World" 6 January 1975 (1975-01-06) 11x10
"The Killer Dust" 20 January 1975 (1975-01-20) 11x11
"A Time to Be Born" 27 January 1975 (1975-01-27) 11x12
"The Unsafe Sea" 10 February 1975 (1975-02-10) 11x13
"The Change of Life" 17 February 1975 (1975-02-17) 11x14
"Project Fido" 24 February 1975 (1975-02-24) 11x15
"The Planets" 10 March 1975 (1975-03-10) 11x16
"The Long Long Walkabout" 7 April 1975 (1975-04-07) 11x17
"The Overworked Miracle" 14 April 1975 (1975-04-14) 11x18
"Not the Cheapest but the Best" 21 April 1975 (1975-04-21) 11x19
"A Spoonful of Roughage" 28 April 1975 (1975-04-28) 11x20
"Brain Poison" 5 May 1975 (1975-05-05) 11x21
"The Bulldog's Last Bark?" 12 May 1975 (1975-05-12) 11x22
"Benjamin" 19 May 1975 (1975-05-19) 11x23
"The Mcmaster Experiment" 2 June 1975 (1975-06-02) 11x24
"The Glazed Outlook" 9 June 1975 (1975-06-09) 11x25
"The Three Chord Trick" 16 June 1975 (1975-06-16) 11x26
"Strange Sleep" 30 June 1975 (1975-06-30) 11x27
"How Do You Read?" 14 July 1975 (1975-07-14) 11x28
"The Sickly Sea" 21 July 1975 (1975-07-21) 11x29
"Happy Catastrophe" 28 July 1975 (1975-07-28) 11x30
"To Die – To Live, The Survivors of Hiroshima" 6 August 1975 (1975-08-06) 11x31
"Cannabis" 11 August 1975 (1975-08-11) 11x32
"Meditation and the Mind" 18 August 1975 (1975-08-18) 11x33

Series 12: 1975–1976[edit]

Title Original broadcast date Episode
"The Trobriand Experiment" 29 December 1975 (1975-12-29) 12x01
"The Transplant Experience" 5 January 1976 (1976-01-05) 12x02
"Intimate Strangers" 12 January 1976 (1976-01-12) 12x03
"A Fair Share of What Little We Have" 19 January 1976 (1976-01-19) 12x04
"The Incredible Machine" 26 January 1976 (1976-01-26) 12x05
"King Coal Revived" 2 February 1976 (1976-02-02) 12x06
"A Question of Trust" 9 February 1976 (1976-02-09) 12x07
"The Case of the Bermuda Triangle" 16 February 1976 (1976-02-16) 12x08
"The Lords of the Labyrinth" 23 February 1976 (1976-02-23) 12x09
"Inside the Shark" 1 March 1976 (1976-03-01) 12x10
"The Chemical Dream" 8 March 1976 (1976-03-08) 12x11
"The Edelin Affair" 15 March 1976 (1976-03-15) 12x12
"The World of Margaret Mead" 22 March 1976 (1976-03-22) 12x13
"The Pathway from Madness" 29 March 1976 (1976-03-29) 12x14
"Geronimo's Children" 5 April 1976 (1976-04-05) 12x15
"The Vision of the Blind" 12 April 1976 (1976-04-12) 12x16
"A Lesson for Teacher" 26 April 1976 (1976-04-26) 12x17
"Why Did Stuart Die?" 3 May 1976 (1976-05-03) 12x18
"The Children of Peru" 17 May 1976 (1976-05-17) 12x19
"Dying" 24 May 1976 (1976-05-24) 12x20
"A Home Like Ours..., A Story of Four Children" 7 June 1976 (1976-06-07) 12x21
"What's Wrong with the Sun?" 14 June 1976 (1976-06-14) 12x22

Series 13: 1976–1977[edit]

Title Original broadcast date Episode
"The Bull's-Eye War" 25 October 1976 (1976-10-25) 13x01
"The Hot-Blooded Dinosaurs" 1 November 1976 (1976-11-01) 13x02
"Billion Dollar Bubble" 8 November 1976 (1976-11-08) 13x03
"The Selfish Gene" 15 November 1976 (1976-11-15) 13x04
"A Child of Our Own" 22 November 1976 (1976-11-22) 13x05
"Secrets of a Coral Island" 29 November 1976 (1976-11-29) 13x06
"The Long Valley" 6 December 1976 (1976-12-06) 13x07
"Half-Way to 1984" 13 December 1976 (1976-12-13) 13x08
"The Mystery of King Arthur and His Round Table" 20 December 1976 (1976-12-20) 13x09
"A Smile for the Crocodile" 7 January 1977 (1977-01-07) 13x10
"The Pill for the People" 14 January 1977 (1977-01-14) 13x11
"The Ape That Stood Up" 21 January 1977 (1977-01-21) 13x12
"The Human Animal" 4 February 1977 (1977-02-04) 13x13
"The Guinea Pig and the Law" 18 February 1977 (1977-02-18) 13x14
"Hunters of the Seal" 25 February 1977 (1977-02-25) 13x15
"The Red Planet" 4 March 1977 (1977-03-04) 13x16
"One of Nature's Hotels" 11 March 1977 (1977-03-11) 13x17
"Dawn of the Solar Age" 18 March 1977 (1977-03-18) 13x18
"Genetic Roulette" 1 April 1977 (1977-04-01) 13x19
"The Amazing Doctor Newton" 15 July 1977 (1977-07-15) 13x20
"The Trouble with Medicine" 22 July 1977 (1977-07-22) 13x21
"Silent Speech" 29 July 1977 (1977-07-29) 13x22
"The Green Machine" 5 August 1977 (1977-08-05) 13x23
"Horizon 2002" 26 August 1977 (1977-08-26) 13x24

Series 14: 1977–1978[edit]

Title Original broadcast date Episode
"The River That Came Clean" 2 September 1977 (1977-09-02) 14x01
"Blueprints in the Bloodstream" 9 September 1977 (1977-09-09) 14x02
"40 Years of Murder" 16 September 1977 (1977-09-16) 14x03
"The Cry for Help" 30 September 1977 (1977-09-30) 14x04
"The Sunspot Mystery" 7 October 1977 (1977-10-07) 14x05
"The Rhine's Revenge" 21 October 1977 (1977-10-21) 14x06
"Icarus' Children" 2 December 1977 (1977-12-02) 14x07
"The Healing Nightmare" 9 December 1977 (1977-12-09) 14x08
"The Great Wine Revolution" 23 December 1977 (1977-12-23) 14x09
"Living Machines" 6 January 1978 (1978-01-06) 14x10
"A Land for All Reasons" 20 January 1978 (1978-01-20) 14x11
"I Don't Want to Be a Burden" 27 January 1978 (1978-01-27) 14x12
"Zero G" 3 February 1978 (1978-02-03) 14x13
"The Message in the Rocks" 17 February 1978 (1978-02-17) 14x14
"The Eddystone Lights" 24 February 1978 (1978-02-24) 14x15
"Light of the 21st Century" 10 March 1978 (1978-03-10) 14x16
"The New Breadline" 24 March 1978 (1978-03-24) 14x17
"Now the Chips are Down" 31 March 1978 (1978-03-31) 14x18
"Explosions in the Mind" 14 July 1978 (1978-07-14) 14x19
"One Small Step" 21 July 1978 (1978-07-21) 14x20
"The Tsetse Trap" 28 July 1978 (1978-07-28) 14x21
"A Whisper from Space" 4 August 1978 (1978-08-04) 14x22
"Prisoners of Hope" 11 August 1978 (1978-08-11) 14x23
"On a Different Track" 18 August 1978 (1978-08-18) 14x24
"Careering into Science" 25 August 1978 (1978-08-25) 14x25

Series 15: 1978–1979[edit]

Title Original broadcast date Episode
"Cashing In on the Ocean" 1 September 1978 (1978-09-01) 15x01
"Bags of Life" 8 September 1978 (1978-09-08) 15x02
"Innocent Slaughter?" 15 September 1978 (1978-09-15) 15x03
"Beersheva Experiment" 3 November 1978 (1978-11-03) 15x04
"Divers Do It Deeper" 10 November 1978 (1978-11-10) 15x05
"The Big Sleep" 17 November 1978 (1978-11-17) 15x06
"The Vital Spark" 24 November 1978 (1978-11-24) 15x07
"The Red Deer of Rhum" 29 December 1978 (1978-12-29) 15x08
"The Forever Fuel" 26 February 1979 (1979-02-26) 15x09
"In Search of Pegasus" 5 March 1979 (1979-03-05) 15x10
"The Keys of Paradise" 12 March 1979 (1979-03-12) 15x11
"Sweet Solutions" 19 March 1979 (1979-03-19) 15x12
"Bronze Age Blast-Off" 26 March 1979 (1979-03-26) 15x13
"The Real Bionic Man" 2 April 1979 (1979-04-02) 15x14
"A Mediterranean Prospect" 9 April 1979 (1979-04-09) 15x15
"Elements of Risk" 23 April 1979 (1979-04-23) 15x16
"Mr Ludwig's Tropical Dreamland" 30 April 1979 (1979-04-30) 15x17
"Where Nothing Happens Twice" 7 May 1979 (1979-05-07) 15x18
"Journey Through the Human Body" 14 May 1979 (1979-05-14) 15x19
"The Fight to Be Male" 21 May 1979 (1979-05-21) 15x20
"The Robots Are Coming" 28 May 1979 (1979-05-28) 15x21

Series 16: 1979–1980[edit]

Title Original broadcast date Episode
"The Mexican Oil Dance" 24 September 1979 (1979-09-24) 16x01
"Tracks on the Oregon Trail" 1 October 1979 (1979-10-01) 16x02
"The Race to Re-Shape Cars" 8 October 1979 (1979-10-08) 16x03
"Dragnet for Diabetes" 15 October 1979 (1979-10-15) 16x04
"Lost Waters of the Nile" 22 October 1979 (1979-10-22) 16x05
"Survival of the Fastest" 29 October 1979 (1979-10-29) 16x06
"A Touch of Sensitivity" 5 November 1979 (1979-11-05) 16x07
"A Treasury of Trees" 12 November 1979 (1979-11-12) 16x08
"Darkness Visible" 19 November 1979 (1979-11-19) 16x09
"Uranium Goes Critical" 3 December 1979 (1979-12-03) 16x10
"The Fat in the Fire" 10 December 1979 (1979-12-10) 16x11
"Decade" 17 December 1979 (1979-12-17) 16x12
"Ghost of the Amoco Cadiz" 14 January 1980 (1980-01-14) 16x13
"You Are Old, Father William" 21 January 1980 (1980-01-21) 16x14
"Cleared for Take Off" 4 February 1980 (1980-02-04) 16x15
"A Sporting Chance" 11 February 1980 (1980-02-11) 16x16
"The Cancer Detectives of Lin Xian" 18 February 1980 (1980-02-18) 16x17
"The Big If" 25 February 1980 (1980-02-25) 16x18
"Cash from Trash" 3 March 1980 (1980-03-03) 16x19
"Encounter with Jupiter" 10 March 1980 (1980-03-10) 16x20
"Portrait of a Poison" 17 March 1980 (1980-03-17) 16x21
"Magnet Earth" 24 March 1980 (1980-03-24) 16x22

Series 17: 1980–1981[edit]

Title Original broadcast date Episode
"Goodbye Gutenberg" 1 September 1980 (1980-09-01) 17x01
"Invasion of the Virions" 8 September 1980 (1980-09-08) 17x02
"Beyond the Milky Way" 15 September 1980 (1980-09-15) 17x03
"Little Boxes" 22 September 1980 (1980-09-22) 17x04
"The Other Kenya" 29 September 1980 (1980-09-29) 17x05
"Moving Still" 6 October 1980 (1980-10-06) 17x06
"The Way Out" 13 October 1980 (1980-10-13) 17x07
"The Dead Sea Lives" 20 October 1980 (1980-10-20) 17x08
"Once in a Million Years" 27 October 1980 (1980-10-27) 17x09
"Smokers' Luck" 3 November 1980 (1980-11-03) 17x10
"Behind the Horoscope" 10 November 1980 (1980-11-10) 17x11
"The Mondragon Experiment" 17 November 1980 (1980-11-17) 17x12
"The Spike" 24 November 1980 (1980-11-24) 17x13
"The Slatemakers" 1 December 1980 (1980-12-01) 17x14
"Anatomy of a Volcano" 15 December 1980 (1980-12-15) 17x15
"Spend and Prosper" 5 January 1981 (1981-01-05) 17x16
Horizon presents a portrait of renowned economist John Maynard Keynes. It follows his life story, his ideas on economics and his contributions to the arts.
"A Whole New Medicine" 12 January 1981 (1981-01-12) 17x17
"The Qualyub Project" 19 January 1981 (1981-01-19) 17x18
"No One Will Take Me Seriously" 26 January 1981 (1981-01-26) 17x19
"Living with Dying" 2 February 1981 (1981-02-02) 17x20
"A Is for Atom, B Is for Bomb" 9 February 1981 (1981-02-09) 17x21
"Who Will Deliver Your Baby?" 16 February 1981 (1981-02-16) 17x22
"West of Bangalore" 2 March 1981 (1981-03-02) 17x23
"Gentlemen, Lift Your Skirts" 9 March 1981 (1981-03-09) 17x24
"Hello Universe!" 16 March 1981 (1981-03-16) 17x25
"Voices from Silent Hands" 23 March 1981 (1981-03-23) 17x26
"Did Darwin Get It Wrong?" 30 March 1981 (1981-03-30) 17x27
"East of Bombay" 6 April 1981 (1981-04-06) 17x28
"Resolution on Saturn, 1: The Rings" 11 April 1981 (1981-04-11) 17x29
"Resolution on Saturn, 2: The Moons" 13 April 1981 (1981-04-13) 17x30

Series 18: 1981–1982[edit]

Title Original broadcast date Episode
"Heads I Win, Tails You Lose" 28 September 1981 (1981-09-28) 18x01
"The Hunt for the Legion Killer" 5 October 1981 (1981-10-05) 18x02
"Breaking in Children" 12 October 1981 (1981-10-12) 18x03
"The Grid" 19 October 1981 (1981-10-19) 18x04
"Butterflies or Barley?" 26 October 1981 (1981-10-26) 18x05
"Science for the People" 2 November 1981 (1981-11-02) 18x06
"The Race to Ruin" 9 November 1981 (1981-11-09) 18x07
"Death of the Dinosaurs" 16 November 1981 (1981-11-16) 18x08
"Feynman, The Pleasure of Finding Things Out" 23 November 1981 (1981-11-23) 18x09
Richard Feynman talks about his life.
"The Cornucopia" 30 November 1981 (1981-11-30) 18x10
"A Race Against Time" 7 December 1981 (1981-12-07) 18x11
"Painting by Numbers" 21 December 1981 (1981-12-21) 18x12
Horizon investigates the current state of computer and analogue graphics by interviewing assists and scientists involved with scientific and technical modelling, 3D movie animation, and computer gaming.
"The Secret of the Snake" 11 January 1982 (1982-01-11) 18x13
"Finding a Voice" 18 January 1982 (1982-01-18) 18x14
"The Sea Behind the Dunes" 25 January 1982 (1982-01-25) 18x15
"Whatever Happened to the Energy Crisis?" 1 February 1982 (1982-02-01) 18x16
"Notes of a Biology Watcher" 8 February 1982 (1982-02-08) 18x17
"The Cline Affair" 15 February 1982 (1982-02-15) 18x18
"The Million Murdering Death" 22 February 1982 (1982-02-22) 18x19
"Shots in the Dark" 1 March 1982 (1982-03-01) 18x20
"The Victims" 8 March 1982 (1982-03-08) 18x21
"The Future-Made in Japan?" 15 March 1982 (1982-03-15) 18x22
"The Private Face of Medicine" 22 March 1982 (1982-03-22) 18x23
"The Fatal Bargain" 5 April 1982 (1982-04-05) 18x24

Series 19: 1982–1983[edit]

Title Original broadcast date Episode
"The Miracle of Life" 11 October 1982 (1982-10-11) 19x01
"The Case of the UFOs" 18 October 1982 (1982-10-18) 19x02
"A Killing Rain" 25 October 1982 (1982-10-25) 19x03
"Intimate Relations" 1 November 1982 (1982-11-01) 19x04
"The Scientist and the Baby" 8 November 1982 (1982-11-08) 19x05
"Brave New Babies?" 15 November 1982 (1982-11-15) 19x06
"The Professor of Surgery" 29 November 1982 (1982-11-29) 19x07
"The Chopper" 6 December 1982 (1982-12-06) 19x08
"The State of the Planet" 13 December 1982 (1982-12-13) 19x09
"The Mysterious Mr Tesla" 20 December 1982 (1982-12-20) 19x10
"Sizewell Under Pressure" 10 January 1983 (1983-01-10) 19x11
"Tropical Time Machine" 17 January 1983 (1983-01-17) 19x12
"The Geneva Event" 24 January 1983 (1983-01-24) 19x13
"How Much Can You Drink?" 7 February 1983 (1983-02-07) 19x14
"Talking Turtle" 14 February 1983 (1983-02-14) 19x15
"What Little Girls Are Made Of" 21 February 1983 (1983-02-21) 19x16
"British Science – On the Wrong Track?" 28 February 1983 (1983-02-28) 19x17
"The Great Plains Massacre" 7 March 1983 (1983-03-07) 19x18
"Hard Rock" 14 March 1983 (1983-03-14) 19x19
"Better Mind the Computer" 21 March 1983 (1983-03-21) 19x20
"Madness on Trial" 11 April 1983 (1983-04-11) 19x21
"Sixty Minutes to Meltdown" 18 April 1983 (1983-04-18) 19x22
"Killer in the Village" 25 April 1983 (1983-04-25) 19x23

Series 20: 1983–1984[edit]

Title Original broadcast date Episode
"The Case of E.S.P." 26 September 1983 (1983-09-26) 20x01
"The Artificial Heart" 3 October 1983 (1983-10-03) 20x02
"Dr Priestley and the Breath of Life" 10 October 1983 (1983-10-10) 20x03
"Professor Hawking's Universe" 17 October 1983 (1983-10-17) 20x04
"The Cruel Choice" 24 October 1983 (1983-10-24) 20x05
"A Child's Guide to Languages" 31 October 1983 (1983-10-31) 20x06
"China's Child" 7 November 1983 (1983-11-07) 20x07
"The Earthquake Connection" 14 November 1983 (1983-11-14) 20x08
"Prisoner or Patient?" 28 November 1983 (1983-11-28) 20x09
"Cancer, The Pattern in the Genes" 5 December 1983 (1983-12-05) 20x10
"The Academy" 12 December 1983 (1983-12-12) 20x11
"The Intelligence Man" 9 January 1984 (1984-01-09) 20x12
"Microworld" 16 January 1984 (1984-01-16) 20x13
"A New Green Revolution?" 23 January 1984 (1984-01-23) 20x14
"Spies in the Wires" 30 January 1984 (1984-01-30) 20x15
"Valley of the Inca" 13 February 1984 (1984-02-13) 20x16
"Conquest of the Parasites" 27 February 1984 (1984-02-27) 20x17
"Reflections on a River" 5 March 1984 (1984-03-05) 20x18
"A Normal Face" 12 March 1984 (1984-03-12) 20x19
"Prisoners of Incest" 19 March 1984 (1984-03-19) 20x20
"Signs of the Apes, Songs of the Whales" 26 March 1984 (1984-03-26) 20x21
"Professor Bonner and the Slime Moulds" 9 April 1984 (1984-04-09) 20x22
"The Mind of a Murderer, 1: The Case of the Hillside Strangler" 16 April 1984 (1984-04-16) 20x23
"The Mind of a Murderer, 2: The Mask of Madness" 17 April 1984 (1984-04-17) 20x24
"A Cruel Inheritance" 30 April 1984 (1984-04-30) 20x25
"The Malvern Link" 7 May 1984 (1984-05-07) 20x26

Series 21: 1984–1985[edit]

Title Original broadcast date Episode
"Contented Cows and Other Animals" 5 November 1984 (1984-11-05) 21x01
"Picking Winners" 12 November 1984 (1984-11-12) 21x02
"The Brain Puzzle" 19 November 1984 (1984-11-19) 21x03
"Global Village" 26 November 1984 (1984-11-26) 21x04
"Ivan" 3 December 1984 (1984-12-03) 21x05
"A Mathematical Mystery Tour" 10 December 1984 (1984-12-10) 21x06
"Supercharged, The Grand Prix Car (1924–1939)" 17 December 1984 (1984-12-17) 21x07
"Colourful Notions" 7 January 1985 (1985-01-07) 21x08
"A World of Their Own" 14 January 1985 (1985-01-14) 21x09
"Decoding Danebury" 21 January 1985 (1985-01-21) 21x10
"A Mission to Heal" 28 January 1985 (1985-01-28) 21x11
"Mystery of the Left Hand" 4 February 1985 (1985-02-04) 21x12
"The Theatre of War" 11 February 1985 (1985-02-11) 21x13
"The Careful Predator" 25 February 1985 (1985-02-25) 21x14
"What Einstein Never Knew" 4 March 1985 (1985-03-04) 21x15
"Eurekaaargh!" 11 March 1985 (1985-03-11) 21x16
"Careering On" 18 March 1985 (1985-03-18) 21x17
"How to Film the Impossible" 25 March 1985 (1985-03-25) 21x18
"The Food Allergy War" 1 April 1985 (1985-04-01) 21x19
"The Goddess of the Earth" 15 April 1985 (1985-04-15) 21x20
"Iras, The Supercooled Eye" 22 April 1985 (1985-04-22) 21x21
"A Prize Discovery" 29 April 1985 (1985-04-29) 21x22
"Twenty-First Birthday" 20 May 1985 (1985-05-20) 21x23

Series 22: 1985–1986[edit]

Title Original broadcast date Episode
"Are You a Racist?" 6 January 1986 (1986-01-06) 22x01
"Genesis" 13 January 1986 (1986-01-13) 22x02
"Bitter Cold" 20 January 1986 (1986-01-20) 22x03
"The Mould, the Myth and the Microbe" 27 January 1986 (1986-01-27) 22x04
"Outbreak, The Microbe Masters the Mould" 3 February 1986 (1986-02-03) 22x05
"The Wrong Stuff" 10 February 1986 (1986-02-10) 22x06
"Science... Fiction?" 17 February 1986 (1986-02-17) 22x07
"The Children of Eve" 24 February 1986 (1986-02-24) 22x08
"The New Face of Leprosy" 3 March 1986 (1986-03-03) 22x09
"Hi-Tech a la Française" 10 March 1986 (1986-03-10) 22x10
"In the Wake of HMS Sheffield" 17 March 1986 (1986-03-17) 22x11
"AIDS, A Strange and Deadly Virus" 24 March 1986 (1986-03-24) 22x12
"The Case of the Frozen Addict" 7 April 1986 (1986-04-07) 22x13
"Nice Guys Finish First" 14 April 1986 (1986-04-14) 22x14
"The Men Who Bottled a Cow" 21 April 1986 (1986-04-21) 22x15
"Twice Five plus the Wings of a Bird" 28 April 1986 (1986-04-28) 22x16
"What Makes an Animal Smart?" 12 May 1986 (1986-05-12) 22x17
"A Handful of Sugar with a Pinch of Salt" 19 May 1986 (1986-05-19) 22x18
"Uranus Encounter" 26 May 1986 (1986-05-26) 22x19
"Who Built Stonehenge?" 9 June 1986 (1986-06-09) 22x20
"Battered Baby, 1: From Generation to Generation" 16 June 1986 (1986-06-16) 22x21
"Battered Baby, 2: Breaking the Chain" 23 June 1986 (1986-06-23) 22x22
"Doctors to Be" 30 June 1986 (1986-06-30) 22x23

Series 23: 1986–1987[edit]

Title Original broadcast date Episode
"The Twenty-Five Hour Clock" 5 January 1987 (1987-01-05) 23x01
"The Search for the Disappeared" 12 January 1987 (1987-01-12) 23x02
"The Blind Watchmaker" 19 January 1987 (1987-01-19) 23x03
"Riding the Stack" 26 January 1987 (1987-01-26) 23x04
"Bruno Bettelheim, 1: The Man Who Cared for Children" 2 February 1987 (1987-02-02) 23x05
"Bruno Bettelheim, 2: A Sense of Surviving" 9 February 1987 (1987-02-09) 23x06
"Energy from Outer Space" 16 February 1987 (1987-02-16) 23x07
"The Return of the Osprey" 23 February 1987 (1987-02-23) 23x08
"Can AIDS Be Stopped?" 2 March 1987 (1987-03-02) 23x09
"Police Stress, John Wayne Syndrome" 9 March 1987 (1987-03-09) 23x10
"To Engineer Is Human" 16 March 1987 (1987-03-16) 23x11
"The Magma Chamber" 23 March 1987 (1987-03-23) 23x12
"Broken Images" 30 March 1987 (1987-03-30) 23x13
"Trial Babies" 6 April 1987 (1987-04-06) 23x14
"After Chernobyl, Closer to Home" 13 April 1987 (1987-04-13) 23x15
"Making Sex Pay" 11 May 1987 (1987-05-11) 23x16
"The Anthropic Principle" 18 May 1987 (1987-05-18) 23x17
"Aircrash, The Burning Issue" 1 June 1987 (1987-06-01) 23x18
"Riddle of the Joints" 8 June 1987 (1987-06-08) 23x19
"To Catch a Falling Star" 15 June 1987 (1987-06-15) 23x20
"In the Light of New Information" 22 June 1987 (1987-06-22) 23x21
"Janice's Choice" 29 June 1987 (1987-06-29) 23x22

Series 24: 1987–1988[edit]

Title Original broadcast date Episode
"The Transplanted Brain" 4 January 1988 (1988-01-04) 24x01
"Death of a Star" 11 January 1988 (1988-01-11) 24x02
"Playing with Madness" 18 January 1988 (1988-01-18) 24x03
"The Canal in the Jungle" 25 January 1988 (1988-01-25) 24x04
"Death of the Working Classes" 1 February 1988 (1988-02-01) 24x05
"The Greenhouse Effect" 8 February 1988 (1988-02-08) 24x06
"Struggling for Control" 15 February 1988 (1988-02-15) 24x07
"Thinking" 22 February 1988 (1988-02-22) 24x08
"Patients on Trial" 29 February 1988 (1988-02-29) 24x09
"Purple Warrior, Rules of Engagement" 7 March 1988 (1988-03-07) 24x10
"Purple Warrior, Limited War" 14 March 1988 (1988-03-14) 24x11
"The Heart of Another" 28 March 1988 (1988-03-28) 24x12
"Easter Island, The Secrets" 11 April 1988 (1988-04-11) 24x13
"Easter Island, The Story" 18 April 1988 (1988-04-18) 24x14
"Cancer at Bay" 4 May 1988 (1988-05-04) 24x15
"Traces of Murder" 9 May 1988 (1988-05-09) 24x16
"The Hope of Progress" 16 May 1988 (1988-05-16) 24x17
"A Newsday Revolution" 23 May 1988 (1988-05-23) 24x18
"A Good Test?" 6 June 1988 (1988-06-06) 24x19
"Superconductor, The Race for the Prize" 13 June 1988 (1988-06-13) 24x20
"Believe Me" 27 June 1988 (1988-06-27) 24x21

Series 25: 1988–1989[edit]

Title Original broadcast date Episode
"The Diary of Discovery" 28 September 1988 (1988-09-28) 25x01
"The Book of Man" 9 January 1989 (1989-01-09) 25x02
"The Poison That Waits" 16 January 1989 (1989-01-16) 25x03
"Perils of the Deep" 23 January 1989 (1989-01-23) 25x04
"Smart Weapons" 30 January 1989 (1989-01-30) 25x05
"Wasting the Alps" 6 February 1989 (1989-02-06) 25x06
"In the Last Resort" 13 February 1989 (1989-02-13) 25x07
"Gaze in Wonder" 20 February 1989 (1989-02-20) 25x08
"In My Lifetime?" 27 February 1989 (1989-02-27) 25x09
"Concerto" 6 March 1989 (1989-03-06) 25x10
"Black Schizophrenia" 13 March 1989 (1989-03-13) 25x11
"Trial in the Jungle" 20 March 1989 (1989-03-20) 25x12
"Who Will Make Me Better?" 3 April 1989 (1989-04-03) 25x13
"A Wonderful Life" 17 April 1989 (1989-04-17) 25x14
"Why Buildings Make You Sick" 24 April 1989 (1989-04-24) 25x15
"Jubilee" 8 May 1989 (1989-05-08) 25x16
"Crash" 15 May 1989 (1989-05-15) 25x17
"The New Sixth Sense" 22 May 1989 (1989-05-22) 25x18
"Clive Sinclair, The Anatomy of an Inventor" 12 June 1989 (1989-06-12) 25x19
"Newpin, A Lifeline" 19 June 1989 (1989-06-19) 25x20
"Time of Darkness" 26 June 1989 (1989-06-26) 25x21

Series 26: 1989–1990[edit]

Title Original broadcast date Episode
"Oil Spill" 8 January 1990 (1990-01-08) 26x01
"Medicine 2000" 15 January 1990 (1990-01-15) 26x02
"Food Irradiation, Would You Buy It?" 22 January 1990 (1990-01-22) 26x03
"From Earth to Miranda" 29 January 1990 (1990-01-29) 26x04
"Encounter with Neptune" 5 February 1990 (1990-02-05) 26x05
"Guess What's Coming to Dinner" 12 February 1990 (1990-02-12) 26x06
"The First 14 Days" 19 February 1990 (1990-02-19) 26x07
"The 10,000 Year Test" 5 March 1990 (1990-03-05) 26x08
"Hurricane!" 12 March 1990 (1990-03-12) 26x09
"The Britannic Greenhouse" 19 March 1990 (1990-03-19) 26x10
"Cold Fusion" 26 March 1990 (1990-03-26) 26x11
"The Quake of 89, The Final Warning?" 2 April 1990 (1990-04-02) 26x12
"The Sharpest Show of the Universe" 9 April 1990 (1990-04-09) 26x13
"The Company of Ants and Bees" 23 April 1990 (1990-04-23) 26x14
"The Intelligent Island" 30 April 1990 (1990-04-30) 26x15
"Legacy of a Volcano" 14 May 1990 (1990-05-14) 26x16
"Do Cows Make You Mad?" 21 May 1990 (1990-05-21) 26x17
"The Child Mothers" 4 June 1990 (1990-06-04) 26x18
"Signs of Life" 11 June 1990 (1990-06-11) 26x19
"AIDS, A Quest for a Cure" 25 June 1990 (1990-06-25) 26x20

Series 27: 1990–1991[edit]

Title Original broadcast date Episode
"Sudden Death" 7 January 1991 (1991-01-07) 27x01
"Keen as Mustard" 14 January 1991 (1991-01-14) 27x02
"Smokers Can Harm Your Health" 21 January 1991 (1991-01-21) 27x03
"Coming in from the Cold" 28 January 1991 (1991-01-28) 27x04
"Small Problem with the Mirror" 4 February 1991 (1991-02-04) 27x05
"California Dreaming" 11 February 1991 (1991-02-11) 27x06
"The Day the Earth Melted" 18 February 1991 (1991-02-18) 27x07
"The Curse of Karash" 25 February 1991 (1991-02-25) 27x08
"Playing at Noah" 4 March 1991 (1991-03-04) 27x09
"Cashing in on Paradise" 11 March 1991 (1991-03-11) 27x10
"The Terracotta Time Machine" 18 March 1991 (1991-03-18) 27x11
"Measuring the Roof of the World" 25 March 1991 (1991-03-25) 27x12
"The First Americans" 15 April 1991 (1991-04-15) 27x13
"Inside Chernobyl Sarcophagus" 22 April 1991 (1991-04-22) 27x14
"Colonising Cyberspace" 29 April 1991 (1991-04-29) 27x15
"Emerging Viruses" 13 May 1991 (1991-05-13) 27x16
"Camelford, A Bitter Aftertaste" 20 May 1991 (1991-05-20) 27x17
"Of Big Bangs, Stick Men, and Galactic Holes" 3 June 1991 (1991-06-03) 27x18
"Food for Thought" 10 June 1991 (1991-06-10) 27x19
This story by Horizon looks at the expanding and controversial area of "smart drugs".
"The Long Road to the West" 17 June 1991 (1991-06-17) 27x20
"Half Hearted About Semi-Skimmed" 24 June 1991 (1991-06-24) 27x21
"T-Rex Exposed" 1 July 1991 (1991-07-01) 27x22

Series 28: 1991–1992[edit]

Title Original broadcast date Episode
"The Shadow of Breast Cancer" 6 January 1992 (1992-01-06) 28x01
"Pest Wars" 13 January 1992 (1992-01-13) 28x02
"Molecules with Sunglasses" 20 January 1992 (1992-01-20) 28x03
"In Search of the Noble Savage" 27 January 1992 (1992-01-27) 28x04
"Malaria, Battle of the Merozoites" 3 February 1992 (1992-02-03) 28x05
"The Black Sun" 17 February 1992 (1992-02-17) 28x06
"Hitler's Bomb" 24 February 1992 (1992-02-24) 28x07
"An Expensive Theology" 2 March 1992 (1992-03-02) 28x08
"The Strange Life and Death of Dr. Turing" 9 March 1992 (1992-03-09) 28x09
"Hot Jam in the Doughnut" 16 March 1992 (1992-03-16) 28x10
"Diet for a Lifetime" 30 March 1992 (1992-03-30) 28x11
"Before Babel" 6 April 1992 (1992-04-06) 28x12
"The Man Who Moved the Mountains" 13 April 1992 (1992-04-13) 28x13
"Iceman" 27 April 1992 (1992-04-27) 28x14
"Taking the Credit" 11 May 1992 (1992-05-11) 28x15
"Fast Life in the Food Chain" 18 May 1992 (1992-05-18) 28x16
"Dodging Doomsday" 1 June 1992 (1992-06-01) 28x17
"A Question of Sport..." 8 June 1992 (1992-06-08) 28x18
"Genes R Us" 15 June 1992 (1992-06-15) 28x19

Series 29: 1992–1993[edit]

Title Original broadcast date Episode
"The Truth About Sex" 3 December 1992 (1992-12-03) 29x01
"Awakening the Frozen Addicts" 4 January 1993 (1993-01-04) 29x02
"Cheating Time" 11 January 1993 (1993-01-11) 29x03
"TB, The Forgotten Plague" 18 January 1993 (1993-01-18) 29x04
"No Ordinary Genius, Episode 1" 25 January 1993 (1993-01-25) 29x05
"No Ordinary Genius, Episode 2" 1 February 1993 (1993-02-01) 29x06
"Mars Alive" 8 February 1993 (1993-02-08) 29x07
"Suggers, Fruggers and Data-Muggers" 15 February 1993 (1993-02-15) 29x08
"The Pyramid Builders" 22 February 1993 (1993-02-22) 29x09
"Here Be Monsters" 1 March 1993 (1993-03-01) 29x10
"Iceman" 8 March 1993 (1993-03-08) 29x11
"Whatever Happened to Star Wars?" 15 March 1993 (1993-03-15) 29x12
"Resurrecting the Dead Sea Scrolls" 22 March 1993 (1993-03-22) 29x13
"Dante Goes to Hell" 29 March 1993 (1993-03-29) 29x14
"Ghosts in the Dinosaur Graveyard" 5 April 1993 (1993-04-05) 29x15
"The New Alchemists" 19 April 1993 (1993-04-19) 29x16
"Allergic to the Twentieth Century" 10 May 1993 (1993-05-10) 29x17
"Wot U Lookin At?" 24 May 1993 (1993-05-24) 29x18
"The Electronic Frontier" 7 June 1993 (1993-06-07) 29x19
"A Vital Poison" 14 June 1993 (1993-06-14) 29x20
"Chimp Talk" 21 June 1993 (1993-06-21) 29x21
"Life Is Impossible" 28 June 1993 (1993-06-28) 29x22

Series 30: 1993–1994[edit]

Title Original broadcast date Episode
"Small Arms, Soft Targets" 10 January 1994 (1994-01-10) 30x01
"The Last Mammoth" 17 January 1994 (1994-01-17) 30x02
"Gerald Edelman, The Man Who Made Up His Mind" 24 January 1994 (1994-01-24) 30x03
"Genie, Secret of the Wild Child" 31 January 1994 (1994-01-31) 30x04
"Death Wish, The Untold Story" 7 February 1994 (1994-02-07) 30x05
"Air Crash, The Deadly Puzzle" 14 February 1994 (1994-02-14) 30x06
"Hunt for the Doomsday Asteroid" 28 February 1994 (1994-02-28) 30x07
"Hubble Vision" 7 March 1994 (1994-03-07) 30x08
"Some Liked It Hot" 14 March 1994 (1994-03-14) 30x09
"Too Close to the Sun" 21 March 1994 (1994-03-21) 30x10
"Sir Walter's Journey, A Genetic Map of Britain" 28 March 1994 (1994-03-28) 30x11
"After the Flood" 18 April 1994 (1994-04-18) 30x12
"Against the Clock" 25 April 1994 (1994-04-25) 30x13
"Auschwitz, The Blueprints of Genocide" 9 May 1994 (1994-05-09) 30x14
"Ulcer Wars" 16 May 1994 (1994-05-16) 30x15
"30th Anniversary, The Far Side" 23 May 1994 (1994-05-23) 30x16

Series 31: 1994–1995[edit]

Title Original broadcast date Episode
"Deaf Whale, Dead Whale" 7 November 1994 (1994-11-07) 31x01
"Whispers of Creation" 14 November 1994 (1994-11-14) 31x02
"The Predator" 21 November 1994 (1994-11-21) 31x03
"Close Encounters" 28 November 1994 (1994-11-28) 31x04
"Orange Sherbert Kisses" 12 December 1994 (1994-12-12) 31x05
"Designer Wines" 19 December 1994 (1994-12-19) 31x06
"Tibet, The Ice Mother" 9 January 1995 (1995-01-09) 31x07
"Russia's Deep Secrets" 16 January 1995 (1995-01-16) 31x08
"Bones of Contention" 23 January 1995 (1995-01-23) 31x09
"Siamese Twins" 30 January 1995 (1995-01-30) 31x10
"Too Big Too Soon?" 20 February 1995 (1995-02-20) 31x11
"Farewell Fantastic Venus" 27 February 1995 (1995-02-27) 31x12
"Exodus" 6 March 1995 (1995-03-06) 31x13
"The Betrayers" 13 March 1995 (1995-03-13) 31x14
"Icon Earth" 20 March 1995 (1995-03-20) 31x15
"The I-Bomb" 27 March 1995 (1995-03-27) 31x16
"Foetal Attraction" 3 April 1995 (1995-04-03) 31x17
"Cracks in the Crust" 10 April 1995 (1995-04-10) 31x18
"Hearing Voices" 24 April 1995 (1995-04-24) 31x19

Series 32: 1995–1996[edit]

Title Original broadcast date Episode
"Liar" 30 October 1995 (1995-10-30) 32x01
"The Human Laboratory" 6 November 1995 (1995-11-06) 32x02
"Nanotopia" 13 November 1995 (1995-11-13) 32x03
"Hunt for the Doomsday Asteroid" 20 November 1995 (1995-11-20) 32x04
"A Code in the Nose" 27 November 1995 (1995-11-27) 32x05
"AIDS, Behind Closed Doors" 4 December 1995 (1995-12-04) 32x06
"The Runaway Mountain" 11 December 1995 (1995-12-11) 32x07
"The Butchers of Boxgrove" 8 January 1996 (1996-01-08) 32x08
An investigation into the discovery of Boxgrove Man.
"Fermat's Last Theorem" 15 January 1996 (1996-01-15) 32x09
The story of Andrew Wiles' proof of Fermat's Last Theorem
"A Miracle for Cancer?" 22 January 1996 (1996-01-22) 32x10
"Nature's Numbers" 29 January 1996 (1996-01-29) 32x11
"The Gene Race" 5 February 1996 (1996-02-05) 32x12
"Masters of the Ionosphere" 12 February 1996 (1996-02-12) 32x13
"Assault on the Male" 26 February 1996 (1996-02-26) 32x14
"Death by Design" 4 March 1996 (1996-03-04) 32x15
"The Planet Hunters" 11 March 1996 (1996-03-11) 32x16
"Einstein, The Miracle Year" 17 March 1996 (1996-03-17) 32x17
"Einstein, Fame" 18 March 1996 (1996-03-18) 32x18
"Inside Chernobyl Sarcophagus" 25 March 1996 (1996-03-25) 32x19
"Fall-Out from Chernobyl" 1 April 1996 (1996-04-01) 32x20

Series 33: 1996–1997[edit]

Title Original broadcast date Episode
"TV Is Dead, Long Live TV" 2 November 1996 (1996-11-02) 33x01
"Aliens from Mars" 11 November 1996 (1996-11-11) 33x02
"Living Death" 25 November 1996 (1996-11-25) 33x03
"The Time Lords" 2 December 1996 (1996-12-02) 33x04
"Molecules with Sunglasses" 9 December 1996 (1996-12-09) 33x05
"Noah's Flood" 16 December 1996 (1996-12-16) 33x06
"Siamese Twins" 20 February 1997 (1997-02-20) 33x07
"Psychedelic Science" 27 February 1997 (1997-02-27) 33x08
"Fat Cats, Thin Mice" 6 March 1997 (1997-03-06) 33x09
"The Shipwreck" 13 March 1997 (1997-03-13) 33x10
"Genius of the Jet" 20 March 1997 (1997-03-20) 33x11
"Smallpox on Death Row" 27 March 1997 (1997-03-27) 33x12
"Silent Children, New Language" 3 April 1997 (1997-04-03) 33x13
"Turned on by Danger" 17 April 1997 (1997-04-17) 33x14
"A Perfect Oil Spill" 24 April 1997 (1997-04-24) 33x15
"The Great Balloon Race" 1 May 1997 (1997-05-01) 33x16

Series 34: 1997–1998[edit]

Title Original broadcast date Episode
"Crater of Death" 11 September 1997 (1997-09-11) 34x01
"Mind over Body" 18 September 1997 (1997-09-18) 34x02
"Out of Asia" 25 September 1997 (1997-09-25) 34x03
"The Virus That Cures" 9 October 1997 (1997-10-09) 34x04
"The Man Who Lost His Body" 16 October 1997 (1997-10-16) 34x05
"Dawn of the Clone Age" 23 October 1997 (1997-10-23) 34x06
"Crash" 12 January 1998 (1998-01-12) 34x07
"Saddam's Secrets" 19 February 1998 (1998-02-19) 34x08
"Dr Miller and the Islanders" 26 February 1998 (1998-02-26) 34x09
"The Rainmaker" 5 March 1998 (1998-03-05) 34x10
"Hopeful Monsters" 19 March 1998 (1998-03-19) 34x11
"Premature Babies, The Limits to Birth" 26 March 1998 (1998-03-26) 34x12
"Overkill" 2 April 1998 (1998-04-02) 34x13
"The Curse of Vesuvius" 16 April 1998 (1998-04-16) 34x14
"Mir Mortals" 23 April 1998 (1998-04-23) 34x15
"The Computer That Ate Hollywood" 30 April 1998 (1998-04-30) 34x16
"Magic Bullet" 7 May 1998 (1998-05-07) 34x17
"The Gulf War Jigsaw" 14 May 1998 (1998-05-14) 34x18

Series 35: 1998–1999[edit]

Title Original broadcast date Episode
"Sexual Chemistry" 10 September 1998 (1998-09-10) 35x01
"Chimps on Death Row" 1 October 1998 (1998-10-01) 35x02
"Dinosaurs in Your Garden Animals: Velociraptor archaeopteryx Caudipteryx" 8 October 1998 (1998-10-08) 35x03
"Mosquito!" 15 October 1998 (1998-10-15) 35x04
"The Life and Times of Life and Time" 22 October 1998 (1998-10-22) 35x05
"Thalidomide, A Necessary Evil" 29 October 1998 (1998-10-29) 35x06
"Beyond a Joke" 5 November 1998 (1998-11-05) 35x07
"From Here to Infinity" 28 January 1999 (1999-01-28) 35x08
"Pandemic" 4 February 1999 (1999-02-04) 35x09
"Elephants or Ivory" 11 February 1999 (1999-02-11) 35x10
"Electric Heart" 18 February 1999 (1999-02-18) 35x11
"Sudden Death" 25 February 1999 (1999-02-25) 35x12
"New Star in Orbit" 11 March 1999 (1999-03-11) 35x13
"New Asteroid Danger" 18 March 1999 (1999-03-18) 35x14
"Skeleton Key" 25 March 1999 (1999-03-25) 35x15
"Designer Babies" 7 April 1999 (1999-04-07) 35x16
"Wings of Angels" 1 August 1999 (1999-08-01) 35x17

Series 36: 1999–2000[edit]

Title Original broadcast date Episode
"Mistaken Identity" 11 November 1999 (1999-11-11) 36x01
"Volcanoes of the Deep" 18 November 1999 (1999-11-18) 36x02
"Anatomy of an Avalanche" 25 November 1999 (1999-11-25) 36x03
"The Midas Formula" 2 December 1999 (1999-12-02) 36x04
"Breath of Life" 13 January 2000 (2000-01-13) 36x05
"Lost City of Nasca" 20 January 2000 (2000-01-20) 36x06
"The Diamond Makers" 27 January 2000 (2000-01-27) 36x07
"Supervolcanos" 3 February 2000 (2000-02-03) 36x08
"Miracle in Orbit" 10 February 2000 (2000-02-10) 36x09
"Complete Obsession: Body Dysmorphia" 17 February 2000 (2000-02-17) 36x10
"Is GM Safe?" 9 March 2000 (2000-03-09) 36x11
"Planet Hunters" 16 March 2000 (2000-03-16) 36x12
"Constant Craving: The Science of Addiction" 30 March 2000 (2000-03-30) 36x13
"Moon Children" 4 April 2000 (2000-04-04) 36x14

Series 37: 2000–2001[edit]

Title Original broadcast date Episode
"Mega-Tsunami, Wave of Destruction" 12 October 2000 (2000-10-12) 37x01
"Conjoined Twins" 19 October 2000 (2000-10-19) 37x02
"The Lost World of Lake Vostok" 26 October 2000 (2000-10-26) 37x03
"Vanished, The Plane That Disappeared" 2 November 2000 (2000-11-02) 37x04
"The Secret Treasures of Zeugma" 9 November 2000 (2000-11-09) 37x05
"The Valley of Life or Death" 16 November 2000 (2000-11-16) 37x06
"Extreme Dinosaurs" Animals: Argentinasaurus Giganotosaurus Tyranosaurus Albertasaurus" 23 November 2000 (2000-11-23) 37x07
"Supermassive Black Holes" 30 November 2000 (2000-11-30) 37x08
"The Boy Who Was Turned into a Girl" 7 December 2000 (2000-12-07) 37x09
"Atlantis Reborn Again" 14 December 2000 (2000-12-14) 37x10

This episode is a re-edited version of Atlantis Reborn after Broadcasting Standards Commission ruled that the original special episode broadcast on the 4th November 1999 was unfair to the author Graham Hancock.

[5]
"The Mystery of the Miami Circle" 25 January 2001 (2001-01-25) 37x11
"The Missing Link Animals: eusthenopteron ichthyostega Coelacanth" 1 February 2001 (2001-02-01) 37x12
"Killer Algae" 8 February 2001 (2001-02-08) 37x13
"Ecstasy and Agony" 15 February 2001 (2001-02-15) 37x14
"Snowball Earth" 22 February 2001 (2001-02-22) 37x15
"Taming the Problem Child" 8 March 2001 (2001-03-08) 37x16

Series 38: 2001–2002[edit]

Title Original broadcast date Episode
"The Mystery of the Persian Mummy" 20 September 2001 (2001-09-20) 38x01
"The Ape That Took Over the World" Animals: sivapithecus limnopithecus Australopithecus Kenyanthropus platyops" 4 October 2001 (2001-10-04) 38x02
"Life Blood" 11 October 2001 (2001-10-11) 38x03
"The Death Star" 18 October 2001 (2001-10-18) 38x04
"Cloning the First Human" 25 October 2001 (2001-10-25) 38x05
"Helike, The Real Atlantis" 10 January 2002 (2002-01-10) 38x06
"Volcano Hell" 17 January 2002 (2002-01-17) 38x07
"Fatbusters" 24 January 2002 (2002-01-24) 38x08
"The Lost Pyramids of Caral" 31 January 2002 (2002-01-31) 38x09
"Death of the Iceman" 7 February 2002 (2002-02-07) 38x10
"Parallel Universes" 14 February 2002 (2002-02-14) 38x11
"The Dinosaur That Fooled the World Animals: Archaeopteryx Archaeoraptor" 21 February 2002 (2002-02-21) 38x12
"The Fall of the World Trade Center" 7 March 2002 (2002-03-07) 38x13
"Archimedes' Secret" 14 March 2002 (2002-03-14) 38x14
"The Mystery of the Jurassic" Animals: ammonite stramatolite mid-jurassic mammal argentinan dinosaur-like-allosaur" 28 March 2002 (2002-03-28) 38x15
"Killer Lakes" 4 April 2002 (2002-04-04) 38x16
"The A6 Murder" 16 May 2002 (2002-05-16) 38x17
"The England Patient" 23 May 2002 (2002-05-23) 38x18

Series 39: 2002–2003[edit]

Title Original broadcast date Episode
"Freak Wave" 14 November 2002 (2002-11-14) 39x01
"Stone Age Columbus" Animals: Clovis people giant armadillo giant sloth great black bear Eskimos Solutrean people" 21 November 2002 (2002-11-21) 39x02
"Homeopathy, The Test" 26 November 2002 (2002-11-26) 39x03
"The Day The Earth Nearly Died" 5 December 2002 (2002-12-05) 39x04
"The Secret of El Dorado" 19 December 2002 (2002-12-19) 39x05
"The Mystery of Easter Island" 9 January 2003 (2003-01-09) 39x06
"Living Nightmare" 16 January 2003 (2003-01-16) 39x07
"Averting Armageddon" 23 January 2003 (2003-01-23) 39x08
"Dirty Bomb" 30 January 2003 (2003-01-30) 39x09
"Sexual Chemistry" 13 February 2003 (2003-02-13) 39x10
"The Day We Learned to Think" Animals (homos): Neandethal Eskimos" 20 February 2003 (2003-02-20) 39x11
"Trial and Error, The Rise and Fall of Gene Therapy" 27 February 2003 (2003-02-27) 39x12
"Earthquake Storms" 6 March 2003 (2003-03-06) 39x13
"Life on Mars" 27 March 2003 (2003-03-27) 39x14
"The Secret Life of Caves" 3 April 2003 (2003-04-03) 39x15
"God on the Brain" 17 April 2003 (2003-04-17) 39x16
"Flight 587" 8 May 2003 (2003-05-08) 39x17
"SARS, The True Story" 29 May 2003 (2003-05-29) 39x18

Series 40: 2003–2004[edit]

Title Original broadcast date Episode
"The Big Chill" 13 November 2003 (2003-11-13) 40x01
"The Bible Code" 20 November 2003 (2003-11-20) 40x02
"Last Flight of the Columbia" 27 November 2003 (2003-11-27) 40x03
"The Hunt for the AIDS Vaccine" 4 December 2003 (2003-12-04) 40x04
"Percy Pilcher's Flying Machine" 11 December 2003 (2003-12-11) 40x05
To mark the hundredth anniversary of the Wright brothers inaugural flight, Horizon tells the story of Percy Pilcher, an Englishman who could have been the first person to fly a powered aircraft. In 1899, four years before the Wright brothers, he had constructed his own aeroplane. But on the day it was due to take off, technical problems led him to fly another aircraft - a decision that ended in a fatal crash. Now, with a team of historians, aviation experts, and its own test pilot, Horizon painstakingly rebuilds Pilcher's flying machine to it to the test.[6]
"Time Trip" 18 December 2003 (2003-12-18) 40x06
"The Demonic Ape" 8 January 2004 (2004-01-08) 40x07
"The Moscow Theatre Siege" 15 January 2004 (2004-01-15) 40x08
"The Atkins Diet" 22 January 2004 (2004-01-22) 40x09
"Secrets of the Star Disc" 29 January 2004 (2004-01-29) 40x10
This is the extraordinary story of how a small metal disc is rewriting the epic saga of how civilisation first came to Europe, 3600 years ago.
"The Dark Secret of Hendrik Schön" 5 February 2004 (2004-02-05) 40x11
"Thalidomide, A Second Chance?" 12 February 2004 (2004-02-12) 40x12
"Diamond Labs" 4 March 2004 (2004-03-04) 40x13
"T. Rex, Warrior or Wimp?" 11 March 2004 (2004-03-11) 40x14
"Project Poltergeist" 18 March 2004 (2004-03-18) 40x15
"The Truth of Troy" 25 March 2004 (2004-03-25) 40x16
Since 1988 Professor Manfred Korfmann has been excavating the site of Troy. He has made various discoveries - how large the city was, how well it was defended and that there was once a great battle there at the time that experts believe the Trojan war occurred. But who had attacked the city and why? Horizon then follows the clues - the ancient tablets written by a lost civilisation, a sunken ship rich in treasure, and the golden masks and bronze swords of a warrior people. The film reaches its conclusion in a tunnel deep beneath Troy, where Korfmann has made a discovery that may reveal the truth behind the myth.[7]

Series 41: 2004–2005[edit]

Title Original broadcast date Episode
"The Truth About Vitamins" 16 September 2004 (2004-09-16) 41x01
"King Solomon's Tablet of Stone" 22 September 2004 (2004-09-22) 41x02
"Derek Tastes of Earwax" 30 September 2004 (2004-09-30) 41x03
"What Really Killed the Dinosaurs?" 7 October 2004 (2004-10-07) 41x04
"Making Millions the Easy Way" 14 October 2004 (2004-10-14) 41x05
"Saturn, Lord of the Rings" 21 October 2004 (2004-10-21) 41x06
"The Hunt for the Supertwister" 28 October 2004 (2004-10-28) 41x07
"Dr. Money and the Boy with No Penis" 4 November 2004 (2004-11-04) 41x08
"Global Dimming" 13 January 2005 (2005-01-13) 41x09
"Einstein's Unfinished Symphony" 20 January 2005 (2005-01-20) 41x10
"Einstein's Equation of Life and Death" 27 January 2005 (2005-01-27) 41x11
"Living with ADHD" 3 February 2005 (2005-02-03) 41x12
"Neanderthal" 10 February 2005 (2005-02-10) 41x13
"An Experiment to Save the World" 17 February 2005 (2005-02-17) 41x14
"Who's Afraid of Designer Babies?" 24 February 2005 (2005-02-24) 41x15
"The Lost Civilisation of Peru" 3 March 2005 (2005-03-03) 41x16
"The Next Megaquake" 22 May 2005 (2005-05-22) 41x17
"Does the MMR Jab Cause Autism?" 29 May 2005 (2005-05-29) 41x18
"Malaria, Defeating the Curse" 5 June 2005 (2005-06-05) 41x19

Series 42: 2005–2006[edit]

Title Original broadcast date Episode
"Tsunami, Naming the Dead" 8 September 2005 (2005-09-08) 42x01
"The Hawking Paradox" 15 September 2005 (2005-09-15) 42x02
"The Mystery of the Human Hobbit" 22 September 2005 (2005-09-22) 42x03
"The Doctor Who Makes People Walk Again?" 29 September 2005 (2005-09-29) 42x04
"Could Fish Make My Child Smart?" 6 October 2005 (2005-10-06) 42x05
"Madagascar, A Treetop Odyssey" 13 October 2005 (2005-10-13) 42x06
"Titan, A Place Like Home?" 20 October 2005 (2005-10-20) 42x07
"The 7/7 Bombers, A Psychological Investigation" 27 October 2005 (2005-10-27) 42x08
"The Ghost in Your Genes" 3 November 2005 (2005-11-03) 42x09
"The Life and Times of El Niño" 3 January 2006 (2006-01-03) 42x10
"Space Tourists" 12 January 2006 (2006-01-12) 42x11
"Waiting for a Heartbeat" 19 January 2006 (2006-01-19) 42x12
"A War on Science" 26 January 2006 (2006-01-26) 42x13
"The Lost City of New Orleans" 2 February 2006 (2006-02-02) 42x14
"Most of Our Universe Is Missing" 9 February 2006 (2006-02-09) 42x15
"The Woman Who Thinks Like a Cow" 8 June 2006 (2006-06-08) 42x16
The amazing story of Dr Temple Grandin's ability to read the animal mind, which has made her the most famous autistic woman on the planet.
"The Genius Sperm Bank" 15 June 2006 (2006-06-15) 42x17
"Bye Bye, Planet Pluto" 22 June 2006 (2006-06-22) 42x18
"We Love Cigarettes" 29 June 2006 (2006-06-29) 42x19
"Nuclear Nightmares" 13 July 2006 (2006-07-13) 42x20
"Tutankhamun's Fireball" 20 July 2006 (2006-07-20) 42x21

Series 43: 2006–2007[edit]

Title Original broadcast date Episode
"Survivors Guide to Plane Crashes" 3 October 2006 (2006-10-03) 43x01
"Chimps Are People Too" 10 October 2006 (2006-10-10) 43x02
"The World's First Face Transplant" 17 October 2006 (2006-10-17) 43x03
"Human Version 2.0" 24 October 2006 (2006-10-24) 43x04
"The Great Robot Race" 31 October 2006 (2006-10-31) 43x05
"Pandemic" 7 November 2006 (2006-11-07) 43x06
H5N1 Bird Flu jumps the species barrier and becomes a global pandemic. This drama documentary narrated by Sean Pertwee, based in Cambodia, USA and the UK, explores what is known so far about avian flu and looks at what might happen if a human pandemic occurs.
"We Are the Aliens" 14 November 2006 (2006-11-14) 43x07
"My Pet Dinosaur" 13 March 2007 (2007-03-13) 43x08
"The Elephant's Guide to Sex" 20 March 2007 (2007-03-20) 43x09
"Prof Regan's Beauty Parlour" 27 March 2007 (2007-03-27) 43x10
"Mad but Glad" 3 April 2007 (2007-04-03) 43x11
"Moon for Sale" 10 April 2007 (2007-04-10) 43x12
"Battle of the Brains" 17 April 2007 (2007-04-17) 43x13
"Skyscraper Fire Fighters" 24 April 2007 (2007-04-24) 43x14
"The Six Billion Dollar Experiment" 1 May 2007 (2007-05-01) 43x15
"How to Commit the Perfect Murder" 8 May 2007 (2007-05-08) 43x16
With the help of forensic science most crimes can be solved. But most criminals have not approached their crimes scientifically.
"Professor Regan's Supermarket Secrets" 31 May 2007 (2007-05-31) 43x17
Probiotic, superfood, organic: what do all these labels on food mean, apart from making a product more expensive? Professor Lesley Regan, who tested beauty products in a previous episode, tests a variety of supermarket products for their supposed health benefits.

Series 44: 2007–2008[edit]

Title Original broadcast date Episode
"How to Kill a Human Being" 15 January 2008 (2008-01-15) 44x01
Former Conservative MP Michael Portillo pushes his body to the brink of death in an investigation into the science of execution. As the American Supreme Court examines whether the lethal injection is causing prisoners to die in unnecessary pain, Michael sets out to find a solution which is fundamentally humane. Armed with startling new evidence, Michael considers a completely new approach. Will it be the answer? There is only one way to find out – to experience it himself.
"Total Isolation" 22 January 2008 (2008-01-22) 44x02
"What on Earth Is Wrong with Gravity?" 29 January 2008 (2008-01-29) 44x03
"Is Alcohol Worse than Ecstasy?" 5 February 2008 (2008-02-05) 44x04
"How to Make Better Decisions" 12 February 2008 (2008-02-12) 44x05
"How to Live to Be 101" 19 February 2008 (2008-02-19) 44x06
"Are We Alone in the Universe?" 4 March 2008 (2008-03-04) 44x07
"How Much Is Your Dead Body Worth?" 18 March 2008 (2008-03-18) 44x08
"How Does Your Memory Work?" 25 March 2008 (2008-03-25) 44x09

Series 45: 2008–2009[edit]

Title Original broadcast date Episode
"The President's Guide to Science" 16 September 2008 (2008-09-16) 45x01
"How Mad Are You? Part 1" 11 November 2008 (2008-11-11) 45x02
"How Mad Are You? Part 2" 18 November 2008 (2008-11-18) 45x03
"Jimmy's GM Food Fight" 25 November 2008 (2008-11-25) 45x04

Jimmy Doherty, pig farmer, one-time scientist and poster-boy for sustainable food production is on a mission to find out if GM crops really can feed the world.

We need to double the amount of food we produce in the next fifty years to feed the world's growing population. Are GM crops the answer? Or are they a dangerous Frankenstein technology that could start an environmental catastrophe?

To find the answers Jimmy is on a journey that will take him from the vast soya plantations of Argentina to the traditional Amish farms of Pennsylvania; and from the cutting-edge technology of the GM laboratories to the banana plantations of Uganda.
"Do You Know What Time It Is?" 2 December 2008 (2008-12-02) 45x05

Particle physicist Professor Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is that we're asking?

Brian visits the ancient Mayan pyramids in Mexico where the Maya built temples to time. He finds out that a day is never 24 hours and meets Earth's very own Director of Time. He journeys to the beginning of time, and goes beyond within the realms of string theory, and explores the very limit of time. He discovers that we not only travel through time at the speed of light, but the experience we feel as the passing of time could be an illusion.
"Allergy Planet" 9 December 2008 (2008-12-09) 45x06

We are in the grip of an allergy epidemic. 50 years ago one in 30 were affected, but in Britain today it is closer to one in three. Why this should be is one of modern medicine's greatest puzzles.

In search of answers, Horizon travels round the globe, from the remotest inhabited island to the polluted centres of California and the UK. We meet sufferers and the scientists who have dedicated their lives trying to answer the mystery of why we are becoming allergic to our world.
"Where's My Robot?" 16 December 2008 (2008-12-16) 45x07
"Why Are Thin People Not Fat?" 26 January 2009 (2009-01-26) 45x08

The world is affected by an obesity epidemic, but why is it that not everyone is succumbing?

Medical science has been obsessed with this subject and is coming up with some unexpected answers. As it turns out, it is not all about exercise and diet.

At the center of this programme is a controversial overeating experiment that aims to identify exactly what it is about some people that makes it hard for them to bulk up.
"Cannabis: The Evil Weed?" 3 February 2009 (2009-02-03) 45x09

Cannabis is the world's favourite drug, but also one of the least understood. Can cannabis cause schizophrenia? Is it addictive? Can it lead you on to harder drugs? Or is it simply a herb, an undervalued medicine?

Addiction specialist Dr John Marsden (host of Body Hits) discovers that modern science is finally beginning to find answers to these questions. John traces the cannabis plants' birthplace in Kazakhstan; finds the origins of our sensitivity to cannabis in the simple sea squirt; and shows just what it does to our brains.

He meets people who have been changed by this drug in drastically different ways – from those whose lives have been shattered to those who lives have been revived.
"Why Do We Dream?" 10 February 2009 (2009-02-10) 45x10

Horizon uncovers the secret world of our dreams. In a series of cutting-edge experiments and personal stories, we go in search of the science behind this most enduring mystery and ask: where do dreams come from? Do they have meaning? And ultimately, why do we dream?

What the film reveals is that much of what we thought we knew no longer stands true. Dreams are not simply wild imaginings but play a significant part in all our lives as they have an impact on our memories, the ability to learn, and our mental health. Most surprisingly, we find nightmares, too, are beneficial and may even explain the survival of our species.
"Can We Make a Star on Earth?" 17 February 2009 (2009-02-17) 45x11

Professor Brian Cox takes a global journey in search of the energy source of the future. Called nuclear fusion, it is the process that fuels the sun and every other star in the universe. Yet despite over five decades of effort, scientists have been unable to get even a single watt of fusion electricity onto the grid.

Brian returns to Horizon to find out why. Granted extraordinary access to the biggest and most ambitious fusion experiments on the planet, Brian travels to the USA to see a high security fusion bomb testing facility in action and is given a tour of the world's most powerful laser. In South Korea, he clambers inside the reaction chamber of K-Star, the world's first super-cooled, super-conducting fusion reactor where the fate of future fusion research will be decided.
"The Secret Life of Your Bodyclock" 24 February 2009 (2009-02-24) 45x12

Why are you more likely to have a heart attack at eight o'clock in the morning or crash your car on the motorway at two o'clock in the afternoon? Can taking your medication at the right time of day really save your life? And have you ever wondered why teenagers will not get out of bed in the morning?

The answers to these questions lie in the secret world of the biological clock.
"What's the Problem with Nudity?" 3 March 2009 (2009-03-03) 45x13

What is wrong with nudity? Why are people embarrassed about their bodies? How and why did they get the way they are?

Horizon takes a group of volunteers and subjects them to a series of psychological and physical tests to challenge attitudes to the naked human form. The questions raised strike at the heart of human physical and social evolution.

Human beings are the only creatures that can be 'naked' - but why, how and when did people lose their fur? That question takes Horizon around the world to meet scientists from Africa to Florida, and they are finding answers in unexpected places: the chest hair of Finnish students, the genetic history of lice, and the sweat of an unusual monkey.

It turns out that something everyone takes for granted may hold the key to the success of the entire human species.
"How to Survive a Disaster" 10 March 2009 (2009-03-10) 45x14

When disaster strikes who lives and who dies is not purely a matter of luck. In every disaster, from those people face once in a lifetime, to those they face every day, there are things that can be done to increase the chances of getting out alive.

Horizon has gathered a team of leading experts to produce the ultimate guide to disaster survival. Through controversial experiments, computer simulations and analysis of hundreds of survivor testimonies from plane crashes to ferry disasters and even 9/11, they will reveal what happens in the mind in the moment of crisis and how the human brain can be programmed for survival.
"Who Do You Want Your Child to Be?" 17 March 2009 (2009-03-17) 45x15

David Baddiel, father of two, sets out to answer one of the greatest questions a parent can ask: how best to educate your child.

Taking in the latest scientific research, David uncovers some unconventional approaches: from the parent hot-housing his child to record-breaking feats of maths, to a school that pays hard cash for good grades.

David witnesses a ground-breaking experiment that suggests a child's destiny can be predicted at four, and hears the three little words that can ruin a child's chance of success for good. He also uncovers the neurological basis for why teenagers can be stroppy and explosive and has his own brain tinkered with to experience what it is like to struggle at school.

Through it all, David's quest remains true: to maximise his child's potential for success and happiness.
"Why Can't We Predict Earthquakes?" 24 March 2009 (2009-03-24) 45x16

Last century, earthquakes killed over one million, and it is predicted that this century might see ten times as many deaths. Yet when an earthquake strikes, it always takes people by surprise.

So why hasn't science worked out how to predict when and where the next big quake is going to happen? This is the story of the men and women who chase earthquakes and try to understand this mysterious force of nature.

Journeying to China's Sichuan Province, which still lies devastated by the earthquake that struck in May 2008, as well as the notorious San Andreas Fault in California, Horizon asks why science has so far fallen short of answering this fundamental question.
"Alan and Marcus Go Forth and Multiply" 31 March 2009 (2009-03-31) 45x17

Ever since he was at school, actor and comedian Alan Davies has hated maths. And like many people, he is not much good at it either. But Alan has always had a sneaking suspicion that he was missing out.

So, with the help of top mathematician Professor Marcus du Sautoy, Alan is going to embark on a maths odyssey. Together they visit the fourth dimension, cross the universe and explore the concept of infinity. Along the way, Alan does battle with some of the toughest maths questions of our age.

But did his abilities peak 25 years ago when he got his grade C O-Level? Or will Alan be able to master the most complex maths concept there is?
"How Violent Are You?" 12 May 2009 (2009-05-12) 45x18

What makes ordinary people commit extreme acts of violence?

In a thought-provoking and disturbing journey, Michael Portillo investigates one of the darker sides of human nature. He discovers what it is like to inflict pain and is driven to the edge of violence himself in an extreme sleep deprivation study.

He meets men for whom violence has become an addiction and ultimately discovers that each of us could be inherently more violent than we think, and watches a replication of one of the most controversial studies in history, the Milgram study. Will study participants be willing to administer a seemingly lethal electric shock to someone they think is an innocent bystander?

Series 46: 2009–2010[edit]

Title Original broadcast date Episode
"Do I Drink Too Much?" 13 October 2009 (2009-10-13) 46x01
Alcohol is by far the most widely used drug – and a dangerous one at that. So why are so many of us drinking over the recommended limits? Why does alcohol have such a powerful grip on us? How much of our relationship with this drug is written in our genes? What are the real dangers of our children drinking too young? Addiction expert John Marsden, who likes a drink, makes a professional and personal exploration of our relationship with alcohol. He undergoes physical and neurological examinations to determine its impact, and finds out why some people will find it much harder than others to resist alcohol. Even at the age of 14 there may be a way of determining which healthy children will turn into addicts. John experiments with a designer drug being developed that hopes to replicate all the benefits of alcohol without the dangers. Could this drug replace alcohol in the future?
"The Secret You" 20 October 2009 (2009-10-20) 46x02
With the help of a hammer-wielding scientist, Jennifer Aniston and a general anaesthetic, Professor Marcus du Sautoy goes in search of answers to one of science's greatest mysteries: how do we know who we are? While the thoughts that make us feel as though we know ourselves are easy to experience, they are notoriously difficult to explain. So, in order to find out where they come from, Marcus subjects himself to a series of probing experiments. He learns at what age our self-awareness emerges and whether other species share this trait. Next, he has his mind scrambled by a cutting-edge experiment in anaesthesia. Having survived that ordeal, Marcus is given an out-of-body experience in a bid to locate his true self. And in Hollywood, he learns how celebrities are helping scientists understand the microscopic activities of our brain. Finally, he takes part in a mind-reading experiment that both helps explain and radically alters his understanding of who he is.
"Fix Me" 27 October 2009 (2009-10-27) 46x03
Horizon follows the emotional journey of three young people with currently untreatable conditions to see if within their lifetime, they can be cured. Sophie is desperate to discover if there's a medical breakthrough which will get her walking again – a car crash after celebrating her A level results left her paralysed from the waist down. Anthony's leg was amputated after a rugby accident on the eve of his eighteenth birthday. Will he ever be able to regrow his leg? Father of four Dean is desperate for a cure for his damaged heart to avoid an early death. They've all read the headlines about the astonishing potential of stem cells to heal the body. Now they've been given access to the pioneering scientists who could transform their lives. With so much at stake, each meeting is highly emotional as our three young people find out if science can fix them.
"Who's Afraid of a Big Black Hole?" 3 November 2009 (2009-11-03) 46x04
Black holes are one of the most destructive forces in the universe, capable of tearing a planet apart and swallowing an entire star. Yet scientists now believe they could hold the key to answering the ultimate question – what was there before the Big Bang? The trouble is that researching them is next to impossible. Black holes are by definition invisible and there's no scientific theory able to explain them. Despite these obvious obstacles, Horizon meets the astronomers attempting to image a black hole for the very first time and the theoretical physicists getting ever closer to unlocking their mysteries. It's a story that takes us into the heart of a black hole and to the very edge of what we think we know about the universe.
"Why Do We Talk?" 10 November 2009 (2009-11-10) 46x05
Talking is something that is unique to humans, yet it still remains a mystery. Horizon meets the scientists beginning to unlock the secrets of speech – including a father who is filming every second of his son's first three years in order to discover how we learn to talk, the autistic savant who can speak more than 20 languages, and the first scientist to identify a gene that makes speech possible. Horizon also hears from the godfather of linguistics, Noam Chomsky, the first to suggest that our ability to talk is innate. A unique experiment shows how a new alien language can emerge in just one afternoon, in a bid to understand where language comes from and why it is the way it is.
"How Long Is a Piece of String?" 17 November 2009 (2009-11-17) 46x06
Alan Davies attempts to answer the proverbial question: how long is a piece of string? But what appears to be a simple task soon turns into a mind-bending voyage of discovery where nothing is as it seems. An encounter with leading mathematician Marcus du Sautoy reveals that Alan's short length of string may in fact be infinitely long. When Alan attempts to measure his string at the atomic scale, events take an even stranger turn. Not only do objects appear in many places at once, but reality itself seems to be an illusion. Ultimately, Alan finds that measuring his piece of string could – in theory at least – create a black hole, bringing about the end of the world.
"How Many People Can Live on Planet Earth?" 9 December 2009 (2009-12-09) 46x07
In a Horizon special, naturalist Sir David Attenborough investigates whether the world is heading for a population crisis. In his lengthy career, Sir David has watched the human population more than double from 2.5 billion in 1950 to nearly seven billion. He reflects on the profound effects of this rapid growth, both on humans and the environment. While much of the projected growth in human population is likely to come from the developing world, it is the lifestyle enjoyed by many in the West that has the most impact on the planet. Some experts claim that in the UK consumers use as much as two and a half times their fair share of Earth's resources. Sir David examines whether it is the duty of individuals to commit not only to smaller families, but to change the way they live for the sake of humanity and planet Earth.
"The Secret Life of the Dog" 6 January 2010 (2010-01-06) 46x08
We have an extraordinary relationship with dogs – closer than with any other animal on the planet. But what makes the bond between us so special? Research into dogs is gaining momentum, and scientists are investigating them like never before. From the latest fossil evidence, to the sequencing of the canine genome, to cognitive experiments, dogs are fast turning into the new chimps as a window into understanding ourselves. Where does this relationship come from? In Siberia, a unique breeding experiment reveals the astonishing secret of how dogs evolved from wolves. Swedish scientists demonstrate how the human/dog bond is controlled by a powerful hormone also responsible for bonding mothers to their babies. Why are dogs so good at reading our emotions? Horizon meets Betsy, reputedly the world's most intelligent dog, and compares her incredible abilities to those of children. Man's best friend has recently gone one step further – helping us identify genes responsible for causing human diseases.
"Why Do Viruses Kill?" 13 January 2010 (2010-01-13) 46x09
Just months ago, the world stood in fear of an emerging new disease that threatened to kill millions. A new flu variant H1N1 had arrived. In the UK alone, 65,000 deaths were predicted. Yet to date, these dire warnings have not materialised. If this latest pandemic has taught anything, it is just how little is understood about the invisible world of viruses. But that has not stopped scientists trying. Horizon follows the leading researchers from across the world, who are attempting to unravel the many secrets of viruses to understand when and why they kill.
"Pill Poppers" 20 January 2010 (2010-01-20) 46x10
Over a person's lifetime they are likely to be prescribed more than 14,000 pills. Antibiotics, cholesterol lowering tablets, anti-depressants, painkillers, even tablets to extend youth and improve performance in bed. These drugs perform minor miracles day after day, but how much is really known about them? Drug discovery often owes as much to serendipity as to science, and that means much is learnt about how medicines work, or even what they do, when they're taken. By investigating some of the most popular pills people pop, Horizon asks, how much can they be trusted to do what they are supposed to?
"Don't Grow Old" 3 February 2010 (2010-02-03) 46x11
For centuries scientists have been attempting to come up with an elixir of youth. Now remarkable discoveries are suggesting that ageing is something flexible that can ultimately be manipulated. Horizon meets the scientists who are attempting to piece together why we age and more vitally for all of us, what we can do to prevent it. But which theory will prevail? Does the 95-year-old woman who smokes two packets of cigarettes a day hold the clue? Do blueberries really delay signs of ageing or is it more a question of attitude? Does the real key to controlling how we age lie with a five-year-old boy with an extraordinary ageing disease or with a self-experimenting Harvard professor? Could one of these breakthroughs really see our lives extend past 120 years?
"To Infinity and Beyond..." 10 February 2010 (2010-02-10) 46x12
By our third year, most of us will have learned to count. Once we know how, it seems as if there would be nothing to stop us counting forever. But, while infinity might seem like an perfectly innocent idea, keep counting and you enter a paradoxical world where nothing is as it seems. Mathematicians have discovered there are infinitely many infinities, each one infinitely bigger than the last. And if the universe goes on forever, the consequences are even more bizarre. In an infinite universe, there are infinitely many copies of the Earth and infinitely many copies of you. Older than time, bigger than the universe and stranger than fiction. This is the story of infinity.
"What Makes a Genius?" 17 February 2010 (2010-02-17) 46x13
Could you have come up with Einstein's theory of relativity? If not – why not? This is what Marcus du Sautoy, professor of mathematics, wants to explore. Marcus readily admits that he is no genius, but wants to know if geniuses are just an extreme version of himself – or whether their brains are fundamentally different. Marcus meets some remarkable individuals – Tommy, an obsessive artist who uses his whole house as his canvas; Derek: blind, autistic, and a pianist with apparently prodigious gifts; Claire, who is also blind, but whose brain has learnt to see using sound. Marcus is shown how babies have remarkable abilities which most of us lose as teenagers. He meets a neuroscientist who claims he has evidence of innate ability, a scientist who's identified a gene for learning, and Dr. Paulus, who has discovered how to sharpen the brain... by electrically turbo-charging it.
"Did Cooking Make Us Human?" 2 March 2010 (2010-03-02) 46x14
We are the only species on earth that cooks its food – and we are also the cleverest species on the planet. The question is: do we cook because we're clever and imaginative, or are we clever and imaginative because our ancestors discovered cooking? Horizon examines the evidence that our ancestors' changing diet and their mastery of fire prompted anatomical and neurological changes that resulted in taking us out of the trees and into the kitchen.
"Is Everything We Know About the Universe Wrong?" 9 March 2010 (2010-03-09) 46x15
There's something very odd going on in space – something that shouldn't be possible. It is as though vast swathes of the universe are being hoovered up by a vast and unseen celestial vacuum cleaner. Sasha Kashlinsky, the scientist who discovered the phenomenon, is understandably nervous: 'It left us quite unsettled and jittery' he says, 'because this is not something we planned to find'. The accidental discovery of what is ominously being called 'dark flow' not only has implications for the destinies of large numbers of galaxies – it also means that large numbers of scientists might have to find a new way of understanding the universe. Dark flow is the latest in a long line of phenomena that have threatened to rewrite the textbooks. Does it herald a new era of understanding, or does it simply mean that everything we know about the universe is wrong?

Series 47: 2010–2011[edit]

Title Original broadcast date Episode
"Back from the Dead" 27 September 2010 (2010-09-27) 47x01
Dr Kevin Fong investigates a pioneering technique of extreme cooling that is being used to bring people back from the dead. In the operating theatre, a patient's heart is stopped and their brain shows no activity. They are indistinguishable from someone who is dead. Yet patients can then be warmed up and brought back to life. Kevin Fong meets the doctors who have developed this procedure, finds out how it could revolutionise intensive care and trauma medicine, and meets some of the remarkable people who have been brought back from the dead.
"The Death of the Oceans?" 4 October 2010 (2010-10-04) 47x02
Sir David Attenborough reveals the findings of one of the most ambitious scientific studies of our time – an investigation into what is happening to our oceans. He looks at whether it is too late to save their remarkable biodiversity. Horizon travels from the cold waters of the North Atlantic to the tropical waters of the Great Barrier Reef to meet the scientists who are transforming our understanding of this unique habitat. Attenborough explores some of the ways in which we are affecting marine life – from over-fishing to the acidification of sea water. The film also uncovers the disturbing story of how shipping noise is deafening whales and dolphins, affecting their survival in the future.
"What Happened Before the Big Bang?" 11 October 2010 (2010-10-11) 47x03
They are the biggest questions that science can possibly ask: where did everything in our universe come from? How did it all begin? For nearly a hundred years, we thought we had the answer: a big bang some 14 billion years ago. But now some scientists believe that was not really the beginning. Our universe may have had a life before this violent moment of creation. Horizon takes the ultimate trip into the unknown, to explore a dizzying world of cosmic bounces, rips and multiple universes, and finds out what happened before the big bang.
"Is Seeing Believing?" 18 October 2010 (2010-10-18) 47x04
Horizon explores the strange and wonderful world of illusions – and reveals the tricks they play on our senses and why they fool us. We show how easy it is to trick your sense of taste by changing the colours of food and drink, explain how what you see can change what you hear, and see just how unreliable our sense of colour can be. But all this trickery has a serious purpose. It's helping scientists to create a new understanding of how our senses work – not as individual senses, but connected together. It holds the intriguing possibility that one sense could be mapped into another. This is what happened to Daniel Kish, who lost his sight as a child. He is now able to create a vision of the world by clicking his tongue which allows him to echolocate like a bat. And in a series of MRI scans, scientists are now looking to find out if Daniel's brain may have actually rewired itself enabling him to use sound to create a visual image of the world.
"Miracle Cure? A Decade of the Human Genome" 25 October 2010 (2010-10-25) 47x05
A decade ago, scientists announced that they had produced the first draft of the human genome, the 3.6 billion letters of our genetic code. It was seen as one of the greatest scientific achievements of our age, a breakthrough that would usher in a new age of medicine. A decade later, Horizon finds out how close we are to developing the life-changing treatments that were hoped for. Horizon follows three people, each with a genetic disease, as they go behind the scenes at some of Britain's leading research labs to find out what the sequencing of the human genome has done for them – and the hope this remarkable project offers all of us.
"Asteroids – The Good, the Bad and the Ugly" 3 November 2010 (2010-11-03) 47x06
Famed for their ability to inflict Armageddon from outer space, asteroids are now revealing the secrets of how they are responsible for both life and death on our planet. Armed with an array of powerful telescopes, scientists are finding up to 3000 new asteroids every night. And some are heading our way. But astronomers have discovered that it's not the giant rocks that are the greatest danger – it's the small asteroids that pose a more immediate threat to Earth. Researchers have explained the photon propulsion that propels these rocks across space, and have discovered that some asteroids are carrying a mysterious cargo of frost and ice across the solar system that could have helped start life on earth.
"Deepwater Disaster – The Untold Story" 16 November 2010 (2010-11-16) 47x07
Horizon reveals the untold story of the 87-day battle to kill the Deepwater Horizon oil blowout a mile beneath the waves – a crisis that became America's worst environmental disaster. Engineers and oil men at the heart of the operation talk for the first time about the colossal engineering challenges they faced and how they had to improvise under extreme pressure. They tell of how they used household junk, discarded steel boxes and giant underwater cutting shears to stop the oil. It's an operation that one insider likens to the rescue of Apollo 13.
"What Is One Degree?" 10 January 2011 (2011-01-10) 47x08
Comedian Ben Miller returns to his roots as a physicist to try to answer a deceptively simple question: what is one degree of temperature? His quest takes him to the frontiers of current science as he meets researchers working on the hottest and coldest temperatures in the universe, and to a lab where he experiences some of the strangest effects of quantum physics – a place where super-cooled liquids simply pass through solid glass. Plus, Ben installs his very own Met office weather station at home.
"What Is Reality?" 17 January 2011 (2011-01-17) 47x09
There is a strange and mysterious world that surrounds us, a world largely hidden from our senses. The quest to explain the true nature of reality is one of the great scientific detective stories. Clues have been pieced together from deep within the atom, from the event horizon of black holes, and from the far reaches of the cosmos. It may be that we are part of a cosmic hologram, projected from the edge of the universe. Or that we exist in an infinity of parallel worlds. Your reality may never look quite the same again.
"Science Under Attack" 24 January 2011 (2011-01-24) 47x10
Nobel Prize winner Sir Paul Nurse examines why science appears to be under attack, and why public trust in key scientific theories has been eroded – from the theory that man-made climate change is warming our planet, to the safety of GM food, or that HIV causes AIDS. He interviews scientists and campaigners from both sides of the climate change debate, and travels to New York to meet Tony, who has HIV but doesn't believe that the virus is responsible for AIDS.
"The Secret World of Pain" 31 January 2011 (2011-01-31) 47x11
Horizon reveals the latest research into one of the most mysterious and common human experiences: pain. Exploring the breakthroughs that have come from studying a remarkable woman in London who has felt no pain at all in her life, a man in the US who cut off his own arm to survive, and three generations of an Italian family who don't feel extremes of temperature. Featuring a new treatment that involves a pioneering computer game 'snow world' that contains the power to banish pain, and revealing how powerfully our moods and emotions shape how we feel pain.
"Surviving a Car Crash" 7 February 2011 (2011-02-07) 47x12
Horizon meets the scientists working to make fatal car crashes a thing of the past. A remarkable fusion of mechanical engineering and biology promises to save countless lives across the world. The programme has exclusive access to the secretive world of the most advanced car crash tests. Horizon reveals how the latest advances in trauma medicine, psychology and even extreme sport are transforming your chances of surviving on the roads. And the programme shows how researchers are creating a new virtual crash test dummy that could change how our cars are designed forever.
"How to Mend a Broken Heart" 14 February 2011 (2011-02-14) 47x13
Dr Kevin Fong finds out how close scientists are to being able to mend your heart if it stops working. He meets some of the people who have undergone pioneering heart operations and the scientists who are pushing the limits of cardiac treatment. We meet a man who has had his heart replaced with an artificial one powered by a mechanical pump he carries around in a rucksack, and witness a scientist bring a dead animal heart back to life on a workbench. Plus, the work of an American scientist who is using stem cells to turn what she calls a 'ghost heart' – the scaffold of a heart – into a replacement heart for humans.
"Are We Still Evolving?" 1 March 2011 (2011-03-01) 47x14
Dr Alice Roberts asks one of the great questions about our species: are we still evolving? There's no doubt that we're a product of millions of years of evolution. But thanks to modern technology and medicine, did we escape Darwin's law of the survival of the fittest? Alice follows a trail of clues from ancient human bones, to studies of remarkable people living in the most inhospitable parts of the planet, to the frontiers of genetic research to discover if we are still evolving – and where we might be heading.
"Predators in Your Backyard" 8 March 2011 (2011-03-08) 47x15
Looking at the radical scheme of reintroducing predator animals close to human dwellings around the world, and the benefits following the reintroduction of Wolves back to Yellowstone National Park.

Series 48: 2011–2012[edit]

Title Original broadcast date Episode
"Do You See What I See" 8 August 2011 (2011-08-08) 48x01
Documentary exploring the impact of colours on people's lives, and how perceptions of them can be influenced by age, gender and mood. The programme examines scientists' claims that different hues have hidden powers, from the winning properties of red to how blue seemingly makes time speed up.
"Seeing Stars" 15 August 2011 (2011-08-15) 48x02
Across the world, a new generation of astronomers is out to make fresh discoveries about the universe, but the scientists need to look farther than ever before. For this, they have pushed the limits of science and engineering to create a new set of super-telescopes that they hope will help them rewrite the story of the stars.
"The Nine Months That Made You" 22 August 2011 (2011-08-22) 48x03
An exploration of theories pioneered by British scientist Professor David Barker, who believes that the time people spend in the womb is so profoundly important that it could affect every area of their subsequent development, from health and personality to the lives of their children.
"The Core" 31 August 2011 (2011-08-31) 48x04
For centuries we have dreamt of reaching the centre of the Earth. Now scientists are uncovering a bizarre and alien world that lies 4,000 miles beneath our feet, unlike anything we know on the surface. It is a planet buried within the planet we know, where storms rage within a sea of white-hot metal and a giant forest of crystals make up a metal core the size of the Moon. Horizon follows scientists who are conducting experiments to recreate this core within their own laboratories, with surprising results..
"Are You Good or Evil?" 7 September 2011 (2011-09-07) 48x05
Horizon meets the researchers who have studied some of the most terrifying people behind bars – psychopathic killers. But there was a shock in store for one of these scientists, Professor Jim Fallon, when he discovered that he had the profile of a psychopath. And the reason he didn't turn out to be a killer holds important lessons for all of us. We meet the scientist who believes he has found the moral molecule and the man who is using this new understanding to rewrite our ideas of crime and punishment.
"Is Nuclear Power Safe?" 14 September 2011 (2011-09-14) 48x06
Six months after the explosions at the Fukushima nuclear plant and the release of radiation there, Professor Jim Al-Khalili sets out to discover whether nuclear power is safe. He begins in Japan, where he meets some of the tens of thousands of people who have been evacuated from the exclusion zone. He travels to an abandoned village just outside the zone to witness a nuclear clean-up operation. Jim draws on the latest scientific findings from Japan and from the previous explosion at Chernobyl to understand how dangerous the release of radiation is likely to be and what that means for our trust in nuclear power.
"Playing God" 17 January 2012 (2012-01-17) 48x07
Adam Rutherford explores synthetic biology, a branch of science that researchers hope will enable them to break nature down into constituent parts so they can rebuild it as they please. He learns about the spider-goat, a creature bred by American scientists, whose milk can be used to artificially create the material for spiderwebs, and investigates how the science behind it could be applied to other areas of the natural world – including the human brain.
"The Truth About Exercise" 28 February 2012 (2012-02-28) 48x08
Michael Mosley investigates recent scientific research that could change the way people exercise, including a study that suggests many could benefit from just three minutes of high-intensity activity a week. He also discovers the health benefits of seemingly innocuous actions, such as walking and fidgeting, and learns why some people do not respond to exercise at all.
"Solar Storms: The Threat to Planet Earth" 6 March 2012 (2012-03-06) 48x09
Scientists predict this year will see a fit of violent activity on the sun which will propel billions of tonnes of superheated gas and pulses of energy towards Earth. In 1989 one of these solar storms, which has the power to close down modern technology, cut off the power to the Canadian province of Quebec. Horizon meets the weathermen as they try to predict what's coming and organisations like the National Grid as they prepare for the cosmic tempest.
"Out of Control?" 13 March 2012 (2012-03-13) 48x10
People assume they are in control of their lives, deciding what they want and when they want it – but scientists now claim this is simply an illusion. Experiments reveal that what a person does and what they think can be very different, with the unconscious mind often influencing the decisions they make, from what they eat to who they fall in love with. Horizon reveals to what extent people really do control their own destiny.
"The Truth About Fat" 20 March 2012 (2012-03-20) 48x11
Surgeon Gabriel Weston explores why so many people are piling on the pounds – and learns about new ways to fight the flab. She discovers the hidden hormones that control appetite and sees the latest surgery that fundamentally changes what a patient wants to eat – by altering how their brains work.
"Global Weirding" 27 March 2012 (2012-03-27) 48x12
Something weird seems to be happening to our weather – it appears to be getting more extreme. In the past few years we have shivered through two record-breaking cold winters and parts of the country have experienced intense droughts and torrential floods. It is a pattern that appears to be playing out across the globe. Hurricane chasers are recording bigger storms and in Texas, record-breaking rain has been followed by record-breaking drought. Horizon follows the scientists who are trying to understand what's been happening to our weather and investigates if these extremes are a taste of what's to come.
"The Hunt for AI" 3 April 2012 (2012-04-03) 48x13
Marcus Du Sautoy wants to find out how close we are to creating machines that can think like us: robots or computers that have artificial intelligence. His journey takes him to a strange and bizarre world where AI is now taking shape. Marcus meets two robots who are developing their own private language, and attempts to communicate to them. He discovers how a super computer beat humans at one of the toughest quiz shows on the planet, Jeopardy. And finds out if machines can have creativity and intuition like us. Marcus is worried that if machines can think like us, then he will be out of business. But his conclusion is that AI machines may surprise us with their own distinct way of thinking.
"Defeating Cancer" 10 April 2012 (2012-04-10) 48x14
Over the past year, Horizon has been behind the scenes at one of Britain's leading cancer hospitals, the Royal Marsden in London. The film follows Rosemary, Phil and Ray as they undergo remarkable new treatments – from a billion pound genetically targeted drug designed to fight a type of skin cancer, to advanced robotic surgery. We witness the breakthroughs in surgery and in scientific research that are offering new hope and helping to defeat a disease that more than one in three of us will develop at some stage of our lives.

Series 49: 2012–2013[edit]

Title Original broadcast date Episode
"The Truth About Looking Young" 23 July 2012 (2012-07-23) 49x01
Plastic surgeon Dr Rozina Ali leaves the operating theatre behind for the frontiers of skin science and asks if it is possible to make your skin look younger without surgery. She examines why some people appear to age better than others, and explores scientific innovations including a pill that manufacturers claim has rejuvenating properties. She also discovers how the contents of a squid's eye could change people's experiences of summer.
"Mission to Mars" 30 July 2012 (2012-07-30) 49x02
Behind the scenes of Curiosity, NASA's latest mission to investigate the possibility of life on Mars. The agency aims to land a nuclear-powered rover vehicle, which cost $2.5billion to develop, on the surface of the planet by winching it down from a rocket-powered crane, then use it to explore the terrain. The programme also discovers the lessons experts have learned from previous expeditions, many of which ended in failure, and the project's chief scientist John Grotzinger discusses what he hopes the mission will reveal.
"Eat, Fast and Live Longer" 6 August 2012 (2012-08-06) 49x03
Michael J. Mosley has set himself a truly ambitious goal: he wants to live longer, stay younger and lose weight in the bargain. And he wants to make as few changes to his life as possible along the way. He discovers the powerful new science behind the ancient idea of fasting, and he thinks he's found a way of doing it with the 5:2 diet that still allows him to enjoy his food. Michael tests out the science of fasting on himself – with life-changing results.
"How Big Is the Universe?" 27 August 2012 (2012-08-27) 49x04
Cosmologists discuss their project to create a map of everything in existence, and reveal that their research has yielded some highly unexpected results, creating a picture stranger than anything they had imagined. Scientists also explain why the map suggests the universe may not be an all-encompassing entity – but merely the starting point for something much bigger.
"How Small Is the Universe?" 3 September 2012 (2012-09-03) 49x05
Horizon plunges down the biggest rabbit-hole in history in search of the smallest thing in the Universe. It is a journey where things do not just become smaller but also a whole lot weirder. Scientists hope to catch a glimpse of miniature black holes, multiple dimensions and even parallel Universes. As they start to explore this wonderland, where nothing is quite what it seems, they may have to rewrite the fundamental laws of time and space.
"Defeating the Superbugs" 10 September 2012 (2012-09-10) 49x06
Scientists and researchers discuss their efforts to thwart potentially lethal strains of bacteria that have grown resistant to conventional antibiotics. The programme follows projects designed to track the global spread of the organisms, and reveals new techniques that are being developed to protect and treat patients.
"The Truth About Meteors: A Horizon Special" 3 March 2013 (2013-03-03) 49x07
On 2013 February 15, a meteorite travelling at more than 30,000 miles an hour crashed into Russia's Ural mountains, injuring more than 1,000 people. Just a day later, an asteroid passed within 17,000 miles of Earth. These were reminders that the planet's journey through space is fraught with danger. Professor Iain Stewart explores what meteorites and asteroids are, where they come from, the risks they pose and the role they have played in Earth's history.
"The Creative Brain – How Insight Works" 14 March 2013 (2013-03-14) 49x08
The work of scientists who are adopting unusual techniques to try to determine how flashes of inspiration come about, developing a series of puzzles and brainteasers to spark creative behaviour. The latest neuro-imaging technology means researchers can witness the birth of an idea as it happens and what they are learning has the power to make everyone more creative.
"How to Avoid Mistakes in Surgery" 21 March 2013 (2013-03-21) 49x09
Dr Kevin Fong examines what can be done to reduce the number of mistakes being made by surgeons in the operating theatre. Speaking to professionals in high-pressure careers - including airline pilots, firemen and Formula One pit workers - he explores the coping mechanisms they each employ when faced with emergency situations, and looks at how these tactics could be transferred to the world of surgery.
"The Truth about Taste" 28 March 2013 (2013-03-28) 49x10
In recent years, researchers have started to understand why people love the foods they do, and that there may be a way to make snacks taste sweeter without adding any extra sugar – and it's all down to a trick that happens in the brain. This film meets a scientist who has grown a tomato that is sweeter and juicier than anything likely to be found on a supermarket shelf, and follows those hoping to become elite, professional tasters.
"The Age of Big Data" 4 April 2013 (2013-04-04) 49x11
An examination of the varying uses being made of the huge amount of information now available in databases ie predictive analytics. In Los Angeles, police officers are taking part in an experiment to predict crime before it even happens, one City of London trader believes he has found the secret of making billions with mathematics, and astronomers in South Africa are attempting to catalogue the entire universe.
"The Secret Life of the Cat" 13 June 2013 (2013-06-13) 49x12
Horizon discovers what your cat really does get up to beyond the cat flap. In this groundbreaking experiment, fifty cats in a Surrey village are tagged with GPS collars and their every movement is recorded, day and night, as they hunt in our backyards and patrol the garden fences and hedgerows. Cats are also fitted with specially developed cat-cams, revealing their unique view of the world.
"Little Cat Diaries" 14 June 2013 (2013-06-14) 49x13
In the previous episode "The Secret Life of the Cat", 50 domestic felines from a Surrey village were fitted with GPS collars and cameras to track their every movement and record their unique view of the world. The results reveal a tomcat that seems to have no owner, a hunter that prefers food it can catch and kill to anything it might be given by humans, and a cat that has abandoned its home in favour of another set of owners.
"Fracking: The New Energy Rush" 19 June 2013 (2013-06-19) 49x14
Geologist Iain Stewart investigates a new and controversial method of extracting natural gas from deep underground that involves hydraulic fracturing - or Fracking, as it is known. He travels to America to find out what the process is and what can be learned from the US experience, meeting people who have become rich from it, as well as those bothered about any risks to their communities.
"Swallowed by a Black Hole" 26 June 2013 (2013-06-26) 49x15
A gas cloud has strayed within the gravitational reach of a super-massive black hole in the centre of the Milky Way and is expected to be affected by it at some point this summer. Across the globe, telescopes are being trained on the heart of Earth's galaxy in the expectation of observing this cosmic spectacle for the first time in history.
"What Makes Us Human?" 3 July 2013 (2013-07-03) 49x16
Humans share 99% of their DNA with chimpanzees and yet from the moment of birth, their lives are completely different. Anthropologist Alice Roberts investigates the factors that separate mankind from its closest living relatives, exploring differences in physiology, genetic make-up and in the brain.
"The Truth About Personality" 10 July 2013 (2013-07-10) 49x17
Michael Mosley explores the latest research in genetics and neuroscience to find out what factors shape people's personalities and whether they can be changed. Michael tries two techniques in an attempt to make him worry less and become more of an optimist - with surprising results.

Series 50: 2013–2014[edit]

Title Original broadcast date Episode
"Monitor Me" 12 August 2013 (2013-08-12) 50x01
Dr Kevin Fong explores the boom in "apps" and gadgets designed to help people monitor their health around the clock. He meets some of the pioneers of this revolution and visits a man who self-diagnosed a life-threatening disease from his own data, without going to the doctor.
"Defeating the Hackers" 19 August 2013 (2013-08-19) 50x02
The programme explores the murky and fast-paced world of people using computers to steal money and identities, as well as wreaking havoc with users online lives. The film reveals the methods scientists are using to help defeat the hackers, meets the two men who uncovered the world's first cyber weapon, and the computer expert who worked out how to hack into cash machines.
"Dinosaurs - The Hunt for Life" 26 August 2013 (2013-08-26) 50x03
The research of Dr Mary Schweitzer, who found soft tissue and red blood cells in the fossilised bones of a 68-million-year-old T rex, a breakthrough that wouldn't have looked out of place in Jurassic Park. Her work is revolutionising scientific understanding of dinosaurs and the palaeontologist believes she may also have found traces of the creatures' DNA.
"Sugar v Fat" 29 January 2014 (2014-01-29) 50x04
Doctors Chris and Xand van Tulleken, who are identical twins, go on month-long diets comprising high volumes of fat or sugar to find out which is worse for the human body. The effects on their health are both shocking and surprising, but they also discover their biggest enemy may have been hiding in plain sight.
"Swallowed by a Sink Hole" 3 February 2014 (2014-02-03) 50x05
In February last year, Jeff Bush was asleep at his home in Florida when a sinkhole opened up beneath his bedroom. Despite the efforts of his brother to rescue him, Jeff was never seen alive again and his body could not be recovered. Professor Iain Stewart travels to the American state to discover what took Jeff's life and investigate why the geology of the area makes it the sinkhole capital of the world.
"Man on Mars: Mission to the Red Planet" 10 February 2014 (2014-02-10) 50x06
Horizon goes behind the scenes at NASA to discover how it is preparing for its most ambitious and daring mission: to land humans on the surface of Mars. Horizon meets the scientists and engineers who are designing new rockets, new space suits and finding ways to help astronauts survive the perils of this long voyage.
"The Power of the Placebo" 17 February 2014 (2014-02-17) 50x07
They are the miracle pills that shouldn't really work at all. Placebos come in all shapes and sizes, but they contain no active ingredient. Now they are being shown to help treat pain, depression and even alleviate some of the symptoms of Parkinson's disease. Horizon explores why they work, and how we could all benefit from the hidden power of the placebo.
"How You Really Make Decisions" 26 February 2014 (2014-02-26) 50x08
Every day you make thousands of decisions, big and small, and behind all them is a powerful battle in your mind, pitting Intuition against logic. This conflict affects every aspect of your life - from what you eat to what you believe, and especially to how you spend your money. And it turns out that the intuitive part of your mind is a lot more powerful than you may realise.
"Living with Autism" 1 April 2014 (2014-04-01) 50x09
On the eve of National / World Autism Day, this programme reveals how a lifetime of study by developmental psychologist Uta Frith has transformed understanding of the condition. The professor discusses the ways people with autism perceive and interact with the world, reveals how another kind of reality exists for them and explains why they often fail to understand jokes.
"The £10 Million Challenge" 22 May 2014 (2014-05-22) 50x10
To celebrate its 50th birthday, Horizon invites the public to play a role in tackling the greatest challenges facing science today.
"Where is Flight MH370?" 17 June 2014 (2014-06-17) 50x11
Horizon tells the inside story of the search for Malaysia Airlines flight MH370. With access to the key players on the frontline in the southern Indian Ocean and the British satellite engineers who tracked the plane's final hours, Horizon breaks open the biggest mystery in aviation history.
"What's Wrong with Our Weather?" 17 July 2014 (2014-07-17) 50x12
Physicist Helen Czerski and meteorologist John Hammond investigate why the British weather appears to have become more extreme and if it has anything to do with climate change. They examine the impact of the jet stream's strange behaviour, revealing what is causing it, and attempt to find out if severe winters are going to become more common.

Series 51: 2014–2015[edit]

Title Original broadcast date Episode
"Should I Eat Meat? - The Big Health Dilemma" 18 August 2014 (2014-08-18) 51x01
In the first of two programmes this week investigating the truth about meat, Michael Mosley asks if those summer barbecue favourites - burgers and sausages - are as bad as some people think. He puts the latest scientific findings to the test on a high-meat diet to discover whether eating beef and bacon every day will do him any harm.
"Should I Eat Meat? - How to Feed the Planet" 20 August 2014 (2014-08-20) 51x02
Part two of two. Every year roughly 65 billion animals are slaughtered globally for food - nine for every living person. In this documentary, Michael Mosley examines the impact this is having on the planet and finds out what meat we should be buying if we want to be eco-friendly carnivores. Is it better to purchase free-range organic or factory-farmed options? The answers are far from obvious.
"Allergies: Modern Life and Me" 27 August 2014 (2014-08-27) 51x03
Changes to the bacteria that live inside all of us are responsible for increasing the number of people with allergies, suggests new research. In this episode of Horizon, the show investigates this claim by conducting a unique experiment with two allergic families in order to find out just what it is in the modern world that is to blame. With a raft of mini cameras, GPS units and the very latest gene sequencing technology, the show discovers how the western lifestyle is impacting their bacteria. Why are these changes making people allergic? And what can be done to put a stop to the allergy epidemic?
"Inside the Dark Web" 3 September 2014 (2014-09-03) 51x04
Twenty-five years after the World Wide Web was created, the issue of surveillance has become the greatest shame upon its existence. With many concerned that governments and corporations monitor people's every move, this programme meets hackers and scientists who are using technology to fight back, and some law enforcement officers who believe it's leading to opportunities for risk-free crimes. With contributors including World Wide Web inventor Tim Berners-Lee and WikiLeaks co-founder Julian Assange.
"Ebola: The Search for a Cure" 10 September 2014 (2014-09-10) 51x05
As the West Africa Ebola outbreak continues to claim lives, this special edition meets scientists and doctors from around the world who are looking for a cure to the deadly virus, and hears first-hand accounts of what it is like to catch - and survive - the disease.

References[edit]

General
Specific
  1. ^ https://bioethicsbytes.wordpress.com/category/horizon/
  2. ^ Reynolds, Stanley, TELEVISION, The Guardian, 13 September 1968
  3. ^ Reynolds, Stanley, TELEVISION, The Guardian; 26 October 1968
  4. ^ Dawson, Helen, THE WEEK'S TV, The Observer, 26 April 1970
  5. ^ Highfield, Roger (11 Dec 2000). "BBC re-edits Horizon after watchdog's attack". The Daily Telegraph. Retrieved 21 June 2014. 
  6. ^ Percy Pilcher's Flying Machine
  7. ^ http://www.bbc.co.uk/science/horizon/2004/troy.shtml The Truth of Troy - programme summary