|Broadcast area||Nationwide. Also widely available in Switzerland, Ireland and the Netherlands.|
|Picture format||1080i HDTV|
(downscaled to 16:9 576i for the SDTV feed)
|Sister channels||BBC One|
|Launched||2 March 2002|
|Freeview (UK)||Channel 9 (Eng, Wales, NI)|
Channel 24 (Scot)
Channel 106 (HD)
|Virgin Media (UK and Ireland)||Channel 107 (HD; UK)|
Channel 117 (Ireland)
|Kabeltex (Netherlands)||Channel 164|
|UPC Switzerland (Switzerland)||Channel 204 (HD)|
|Freesat (UK)||Channel 107 (SD/HD)|
Channel 173 (SD)
|Sky (UK and Ireland)||Channel 116 (SD/HD; UK)|
Channel 143 (SD/HD; Ireland)
Channel 815 (SD; UK)
Channel 833 (SD; Ireland)
|Astra 2E (28.2°E)||10773 H 22000 5/6|
|Astra 2G (28.2°E)||11023 H 23000 3/4 (HD)|
|KPN (Netherlands)||Channel arbitrary|
|Eir Vision||Channel 207|
Channel 211 (HD)
|BBC iPlayer||Watch live (UK only)|
|TVPlayer||Watch live (UK only)|
|Horizon Go||Watch live (Ireland only)|
Watch live (Switzerland only)
BBC Four is a British free-to-air television channel owned and operated by the BBC. It was launched on 2 March 2002, with a schedule running from 7:00 pm to 4:00 am, timesharing with CBeebies (which starts at 6:00am). The channel shows "a wide variety of programmes including arts, comedy, documentaries, music, international film, original programmes, drama and current affairs ... an alternative to programmes on the mainstream TV channels". It is required by its licence to air at least 100 hours of new arts and music programmes, 110 hours of new factual programmes and to premiere 20 foreign films each year.
BBC Four launched on 2 March 2002 at 7:00 pm GMT, having been delayed from the original planned 2001 launch. BBC Four began originally as a late schedule to BBC Two, before it received its own channel, along with BBC Three. Curiously, BBC Four had to launch before BBC Three as a result of the government delaying approval plans. The channel replaced BBC Knowledge, an educational and cultural channel which had undergone many changes throughout its lifetime; in its final format it carried a schedule of documentaries and art programming, essentially a test of the new BBC Four schedule. BBC Four would rebrand this channel, and bring it into line with the well recognised BBC One and Two brands at the same time. Planning for the new channel, along with the new BBC Three, had been in progress since October 2000; however, the incumbent government delayed approving the new BBC digital plans. The BBC Four plans were approved earlier, and as a result launched before BBC Three.
BBC Four was different from the old BBC Knowledge: the channel would be more heavily promoted with more new and original programming and the channel would not be broadcast 24 hours a day. This was because on the Freeview digital terrestrial platform, BBC Four is broadcast in a statistically multiplexed stream in Multiplex B that timeshares with the CBeebies channel (which is on air from 06:00 until 19:00). As a result, BBC Four broadcasts from 19:00 to around 03:35 each night, with an hour's down-time and promotions for CBeebies before the start of that channel's schedule.
On 12 May 2011, BBC Four was added to the Sky EPG in the Republic of Ireland on channel 230. It later moved to EPG 211 to free up space for new channels. It later moved to channel 143 on 1 May 2018 to sit beside the Northern Irish versions of BBC One and BBC Two there, and the 200s being used for +1 channels.
On 17 August 2018, BBC Four announced BBC 4.1, a special two nights of programming which would revolve around artificial intelligence (AI) selecting the programmes broadcast on the channel, based on "what BBC Four audiences might like, based on the channel's previous schedules and programme attributes." It would then "[rank] programmes it thought were most relevant [to what BBC Four viewers would like]." The programming was aired on the nights of 4 and 5 September 2018. This included a few special programmes about AI, such as "Made by Machine: When AI Met The Archive", which documented how the AI works, and "The Joy of AI", where "the emergence of machine learning" is discussed, as well as "why [AI] shouldn't spook us".
On 19 February 2019, Virgin Media stopped providing BBC Four in standard definition.
Due to the launch of BBC Scotland on 24 February 2019, BBC Four has been on a lower Freeview EPG number in Scotland than elsewhere, moving to 82 to make room for BBC Scotland. Following eventual closures, it moved to channel 75 there, and later to channel 68, and eventually channel 55. On 4 November 2020, due to Ofcom proposals regarding certain PSB channels requiring greater prominence on each UK TV provider's channel listing, BBC Four moved to channel 24 in Scotland, while every channel from that number (ITV4) to channel 54 (5SELECT) moved down one place.
In May 2020, the BBC submitted its annual general plan for 2020-21, which included a proposal for BBC Two to supplant BBC Four as its main outlet for specialist programmes. Under the plan, BBC Four would cease originating new programmes, and become a service showcasing the BBC's "rich archive". The plan also included the possibility of the BBC expanding BBC Four into a global brand, to "[take] our strengths in specialist factual to the world stage."
The channel direction is determined by the channel's remit, set by royal charter and the corporation's governing body (the BBC Board), and by the channel controller. In October 2013, following the departure of Richard Klein from the controllership, the management of the channel changed, with the role of Controller of BBC Four scrapped: from this point the Controller of BBC Two would have ultimate oversight of BBC Four as part of their role, absorbing some of the former duties of the Controller of BBC Four, but a new 'Channel Editor' post, reporting up to this controller, would be created to take day-to-day charge of Four. The controllers of BBC Four from 2002 to 2016 have been:
Channel Editors of BBC Four have been:
BBC Four has an annual budget of £54.3 million.
On 20 January 2016, Kim Shillinglaw announced that she had decided to leave the BBC as the Controller of BBC Two & BBC Four. As a result of the reorganisation, the post of BBC Two and Four control had closed after her departure later that year.
On 16 July 2013, the BBC announced that a high-definition (HD) simulcast of BBC Four would be launched by early 2014. The channel launched on 10 December 2013 at 18:58 GMT, and rolled out nationwide up to June 2014 (as did BBC News HD and CBeebies HD). The channel broadcasts on the BBC's new HD multiplex on Freeview and shares its stream with CBeebies HD as they both air at different times. Prior to launch, the majority of BBC Four's HD output was broadcast on the BBC HD channel before its closure on 26 March 2013. In 2017 BBC Four HD along with CBBC HD and Cbeebies HD launched in Ireland.
BBC Four's primary role is to reflect a range of UK and international arts, music and culture. It should provide an ambitious range of innovative, high quality programming that is intellectually and culturally enriching, taking an expert and in-depth approach to a wide range of subjects.-- BBC Four Remit
The first evening's BBC Four programmes were simulcast on BBC Two, with the first programme being The Man Who Destroyed Everything, a documentary about conceptual artist Michael Landy and his installation Break Down. BBC Four was also notable for first showing Larry David's Seinfeld follow-up, Curb Your Enthusiasm,Armando Iannucci's cutting political satire, The Thick of It, The Chaser's War on Everything, Flight of the Conchords, Mad Men and Danish thriller The Killing.
The channel broadcasts a mixture of art and science documentaries, vintage drama (including many rare black-and-white programmes), and non-English-language productions such as films from the Artificial Eye catalogue, the French thriller Spiral and the Swedish detective series Wallander. BBC Four further supports foreign-language films with its annual World Cinema Award which has been running since 2004.
Until the middle of 2020, BBC Four broadcast a global news bulletin on weekdays at 19:00 which most recently was a simulcast of Beyond 100 Days Monday-Thursday and an edition of World News Today on Fridays which was produced by BBC World News. This replaced The World and BBC Four News which aired in the slot from the launch of the channel. As of autumn 2020, BBC Four no longer broadcasts a news bulletin.
It screens a number of documentaries such as The Century of the Self and The Trials of Henry Kissinger. The channel is also home to many political travel shows such as Holidays in the Axis of Evil which features investigative journalism.
Drama has given the channel some of its most popular programmes, with The Alan Clark Diaries (2003) and Kenneth Williams: Fantabulosa! (2006) being among the highest rated, with over 800,000 viewers. The highly acclaimed Hattie, broadcast in 2011, holds the record for BBC4's best ever consolidated ratings of 2m / 8%. Before that The Curse of Steptoe brought the channel its highest audience figures, estimated as 1.41 million viewers, a 7% share of multichannel audiences between 21:00 and 22:05, based on overnight returns. The official audience figures for the broadcast, including time-shifting, were later published as 1,625,000. Another notable production was a live re-make of the 1953 science-fiction serial The Quatermass Experiment, adapted from the original scripts into a single, two-hour version (though on the night it, in fact, underran considerably, lasting less than 1 hour 40 minutes), broadcast on the evening of Saturday 2 April 2005. Discounting BBC Four's previous live relays of theatrical Shakespeare productions, this was the first live made-for-television drama to be broadcast by the BBC for twenty years.
Another notable programme broadcast on BBC Four is Charlie Brooker's Screenwipe which contains reviews of current shows, as well as stories and commentary on how television is produced. The show is presented by broadcaster Charlie Brooker.
The channel is also curator and leader of the BBC Archive project whose aim is that the BBC's television archive is re-broadcast as much as appropriate so that the Archive can be enjoyed again and not isolated.
Some output from BBC Four (documentaries rather than foreign films) was for a time repeated on BBC Two in a 'BBC Four on Two' branded area, although this was often in a late night broadcast slot after Newsnight and has since been discontinued.
At the Edinburgh International Television Festival, BBC Four won the Non-Terrestrial Channel of the Year award in 2004, 2006 and 2012.
BBC Four is occasionally used to show live sports coverage. The channel aired additional games from the UEFA Euro 2016 football tournament, and temporarily extended its broadcast hours to show live action from the 2016 Summer Olympics.
As of 2021, BBC Four schedules still feature music programming (such as Top of the Pops and Neil Brand's documentaries) on a Friday night, with drama imports on a Saturday (but not always foreign-language productions like Italian crime drama Inspector Montalbano) and usually an hour of 'archive' programmes (such as those by Bob Ross and Fred Dibnah)  starting off the weekday schedule at 7pm.
|Rank||Programme||Number of Viewers||Date|
|1||The Jeremy Thorpe Scandal||2,378,000||3 June 2018|
|2||Hattie||2,005,000||19 January 2009|
|3||The Bridge||1,810,000||21 November 2015|
|4||Snooker: 2020 World Championship||1,738,500||14 August 2020|
|5||Detectorists||1,687,000||8 November 2017|
|6||Roots||1,659,000||8 February 2017|
|7||The Curse of Steptoe||1,625,000||19 March 2008|
|8||The Bridge||1,620,000||1 February 2014|
|9||Detectorists||1,593,000||22 November 2017|
|10||Goodbye Television Centre||1,588,000||22 March 2013|
The channel's initial series of idents were generated dynamically reflecting the frequencies of the continuity announcers' voice or of backing music and were designed by Lambie-Nairn. As a result, no two idents were ever the same. The first continuity announcer was Zeb Soanes.
When the channel first started airing, it used the slogan "Everybody Needs A Place To Think", but the BBC stopped using this several months after the launch. However the BBC Four logo and above slogan can be found, engraved on benches along the South Bank in London, between the London Eye and Waterloo Bridge.
On 10 September 2005, the channel began showing new idents comprising a central BBC Four logo surrounded by four quadrants which show different stages of the same footage thus making for a sort of optical illusion; for example, a swimming pool where a person on an inflatable ring appears in the bottom-left corner, though ripples don't enter the remaining quarters. Although the image appears as one at the start of the ident, by the end it is clearly four separate images.
In March 2019, BBC Four added several new idents inspired by "oddly satisfying videos" in tandem with the quadrants theme, originally premiering for a programme season honouring the 30th anniversary of the World Wide Web.