6 January (1975-01-06) – 10 March 1975 (1975-03-10)
The Changes is a British children's science fictiontelevision serial filmed in 1973 and first broadcast in 1975 by the BBC. It was directed by John Prowse and is based on the trilogy written by Peter Dickinson: The Weathermonger (1968), Heartsease (1969), and The Devil's Children (1970) (the books were written in reverse order: the events of The Devil's Children happen first, Heartsease second, and The Weathermonger third).
The Changes posits a Britain where a sudden enveloping noise emanating from all machinery and technology causes the population to destroy them. The resulting upheaval displaces many people and reverts society to a pre-industrial age where there is a deep suspicion of anyone who may be harbouring machinery. Even the words for technology are taboo. The remnants of modern technology that escape destruction (such as electricity pylons) produce a physical and sometimes violent repulsion among those left in Britain.
The Changes are seen through the eyes of teenage schoolgirl Nicky Gore (Victoria Williams), and the 10-part series, originally broadcast every Monday from 6 January to 10 March 1975, traces Nicky's quest to reunite with her parents and solve the mystery.
Described by BBC continuity as "a serial for older children", the TV series was freely adapted by Anna Home from a trilogy of novels by Peter Dickinson. The series took most of its material from The Weathermonger which, together with Heartsease and The Devil's Children has recently been reissued in a single volume in the UK. In the original books, however, the lead character of Nicky Gore appears only in The Devil's Children — the books have entirely separate characters, and Nicky is introduced into scenarios in which she does not appear in the books, mixing with characters from the other two books. In addition, the timespan of The Changes is considerably reduced from that of the original trilogy.
The series was shown overseas, repeated by the BBC in 1976 and on UK Gold in 1994. It was released on DVD by the BFI in August 2014.