3 January – The BBC cancels the appearance of Coca Cola sponsorship credits in the music charts in its BBC OneTop of the Pops show, after criticism from politicians and health campaigners that it would be promoting junk food and unhealthy drink products to teenagers.
4 January – ITV introduces a sixth weekly episode of Emmerdale airing on Sunday evenings at 7:00 pm. The episode is dropped in 2008 to allow for one hour episodes on Tuesdays.
28 January – The Hutton Inquiry into the circumstances of the death of Dr. David Kelly is published. This is taken by most of the press to strongly condemn the BBC's handling of the David Kelly affair and to exonerate the government. The BBC's Director-General, Greg Dyke, chairman of the Board of Governors, Gavyn Davies, and the journalist at the centre of the controversy, Andrew Gilligan, resign. The UK media in general condemns the report as a whitewash.[1]
30 January – ITV's News at Ten ends for a second time, with its replacement, the News at 10:30, launching the following Monday.
2 February – ITV plc is formed from the merger of Carlton and Granada. The News at 10:30 also debuts, while the ITN News Channel is rebranded as the ITV News Channel.
16 February – BBC Network news titles are relaunched in the style of BBC News 24, which introduced two months earlier.
27 February – Reports emerge of discussions between Channel 4 and Five aimed at a merger between the two channels.[2]
8 March – All 'UK' prefix TV channels are rebranded to UKTV. For example UK Bright Ideas is rebranded UKTV Bright Ideas, and UK History becomes UKTV History.
2 April– Christopher Eccleston is announced as the ninth actor to play The Doctor in Doctor Who. The series, which last aired in December 1989, will return in March next year.
10 May – ABC1, a channel from Disney, is launched in the UK.
17 May – Michael Grade is appointed as new BBC chairman.
14 June – Quiz TV launches in the UK, one of the country's first phone-in quiz channels. Many more launched over the next few years, though Quiz TV itself would close down in 2006.
17 June – The live feed of Big Brother is taken off air for a few hours as the housemates become aggressive and fight.
22 June – Mark Thompson takes over as Director General of the BBC.
24 June – The highest rated audience of the year is recorded in the UK as 20.66 million watch England's football match against Portugal in the quarter finals of Euro 2004. Viewing figures for any programme would not reach the 20 million mark again for another eight years, when England faced Italy at Euro 2012. [1]
5 July – 50th anniversary of television news broadcasts.
1 October – As part of its response to the Hutton Inquiry the BBC launches Newswatch, a programme providing a viewer and listener right-to-reply on BBC News's reporting and coverage of news events.
1 October – BBC Technology, incorporating the BBC's Broadcast Engineering division, is sold to Siemens AG Business Services for approximately £200m, and a £2bn, 10-year outsourcing contract.
30 October – The BBC receives "hundreds of complaints" after reporter Barbara Plett describes herself crying when a frail Yasser Arafat was evacuated to France for medical treatment. Ultimately these complaints are partially upheld by the BBC Governors' Programme Complaints Committee.[6]
1 November – The digital television station ITV3 is launched at 9:00 pm, replacing Granada Plus.
17 November – It is reported that merger talks between Channel 4 and Five have been called off after complexities arose between the public broadcaster Channel 4 and its commercial counterpart.[7]
18 November – The video for the new charity single Do They Know It's Christmas? by Band Aid 20 airs simultaneously on all five main UK television networks, as well as over twenty satellite and cable stations. This unprecedented broadcast attracts over fourteen million viewers between 5:50 and 6 pm.