BBC

===Television===
{{Main|BBC Television}}
[[File:BBC weekly reach 2011-12.png|thumb|right|upright=1.14|Weekly reach of the BBC's domestic services from 2011 to 2012<ref name="BBC Trust annual report 11/12">{{cite web|title=BBC publishes Annual Report for 2011/12|url=https://www.bbc.co.uk/bbctrust/news/press_releases/2012/annual_report.html|publisher=BBC Trust|access-date=21 September 2012|date=16 July 2012|archive-url=https://web.archive.org/web/20121221074948/http://www.bbc.co.uk/bbctrust/news/press_releases/2012/annual_report.html|archive-date=21 December 2012|url-status=live}}</ref><ref name="BBC Annual Report 2011-12 reach pages">{{cite web|title=Part 2 – The BBC Executive's Review and Assessment|url=http://downloads.bbc.co.uk/annualreport/pdf/bbc_executive_2011_12.pdf|website=Annual Report 2011–12|publisher=BBC|access-date=21 September 2012|location=London, United Kingdom|pages=4–9|date=16 July 2012|archive-url=https://web.archive.org/web/20121030111815/http://downloads.bbc.co.uk/annualreport/pdf/bbc_executive_2011_12.pdf|archive-date=30 October 2012|url-status=live}}</ref> Reach is the number of people who use the service at any point for more than 15 minutes in a week.<ref name="BBC Annual Report 2011-12 reach pages"/>]]
The BBC operates several television channels nationally and internationally. [[BBC One]] and [[BBC Two]] are the flagship television channels. Others include the youth channel [[BBC Three]] ,{{efn|BBC Three originally ceased broadcasting as a linear television channel in February 2016 and returned to television in February 2022}}<ref>{{cite news | title = BBC Three returns to TV with RuPaul special and regional focus | url = https://www.bbc.co.uk/news/entertainment-arts-60205751 | date = 1 February 2022 | access-date = 7 March 2022 | archive-date = 19 March 2022 | archive-url = https://web.archive.org/web/20220319060811/https://www.bbc.co.uk/news/entertainment-arts-60205751 | url-status = live }}</ref> cultural and documentary channel [[BBC Four]], the [[BBC News (TV channel)|British]] and [[BBC News (international TV channel)|international]] variations of the BBC News channel, parliamentary channel BBC Parliament, and two children's channels, [[CBBC]] and [[CBeebies]]. Digital television is now entrenched in the UK, with analogue transmission completely phased out {{as of|2012|December|lc=y}}.<ref>{{cite news | title = BBC News Report | url = http://news.bbc.co.uk/1/hi/entertainment/6453087.stm | date = 15 March 2007 | access-date =15 March 2007| archive-url= https://web.archive.org/web/20070317195832/http://news.bbc.co.uk/1/hi/entertainment/6453087.stm| archive-date= 17 March 2007 | url-status=live}}</ref>

[[File:BBC Television weekly reach 2011-12.png|thumb|left|upright=1.364|Weekly reach of the BBC's domestic television channels 2011–12<ref>{{cite web | title=BBC Annual Report 2011-12 reach pages | url=https://www.bbc.co.uk/bbctrust/news/press_releases/2012/annual_report.html | access-date=20 December 2019 | archive-date=21 December 2012 | archive-url=https://web.archive.org/web/20121221074948/http://www.bbc.co.uk/bbctrust/news/press_releases/2012/annual_report.html | url-status=live }}</ref>]]
BBC One is a regionalised TV service which provides opt-outs throughout the day for local news and other local programming. These variations are more pronounced in the BBC "Nations", i.e. [[BBC Northern Ireland|Northern Ireland]], [[BBC Scotland|Scotland]] and [[BBC Wales|Wales]], where the presentation is mostly carried out locally on BBC One and Two, and where programme schedules can vary greatly from that of the network. BBC Two variations exist in the Nations; however, [[BBC English Regions|English regions]] today rarely have the option to opt out as regional programming now only exists on BBC One. In 2019, the Scottish variation of BBC Two ceased operation and was replaced with the networked version in favour of the [[BBC Scotland (TV channel)|BBC Scotland channel]]. BBC Two was also the first channel to be transmitted on 625 lines in 1964, then carry a small-scale regular colour service from 1967. BBC One would follow in November 1969.

A new [[Scottish Gaelic]] television channel, [[BBC Alba]], was launched in September 2008. It is also the first multi-genre channel to come entirely from Scotland with almost all of its programmes made in Scotland. The service was initially only available via [[Satellite television|satellite]] but since June 2011 has been available to viewers in Scotland on [[Freeview (UK)|Freeview]] and cable television.<ref>{{cite news | title = BBC Alba Freeview date unveiled | url = https://www.bbc.co.uk/news/uk-scotland-highlands-islands-13479551 | date = 23 May 2011 | access-date = 28 July 2011 | work = BBC News | archive-url = https://web.archive.org/web/20110526044519/http://www.bbc.co.uk/news/uk-scotland-highlands-islands-13479551 | archive-date = 26 May 2011 | url-status = live }}</ref>

[[File:The Reichenbach Fall filming (3).JPG|thumb|230px|Filming an episode of BBC One's ''[[Sherlock (TV series)|Sherlock]]'' (with [[Benedict Cumberbatch]] as Sherlock Holmes pictured) in July 2011]]
The BBC currently operates [[High-definition television|HD]] simulcasts of all its nationwide channels with the exception of [[BBC Parliament]]. Until 26 March 2013, a separate channel called [[BBC HD]] was available, in place of [[BBC Two HD]]. It launched on 15 May 2006, following a 12-month trial of the broadcasts. It became a proper channel in 2007, and screened HD programmes as simulcasts of the main network, or as repeats. The corporation has been producing programmes in the format for many years, and stated that it hoped to produce 100% of new programmes in HDTV by 2010.<ref>{{cite web | title = BBC Press Release: ''BBC to trial High Definition broadcasts in 2006'' | url = http://www.bbc.co.uk/pressoffice/pressreleases/stories/2005/11_november/08/hdtv.shtml | date = 8 November 2005 | access-date = 7 July 2006 | archive-url = https://web.archive.org/web/20060518191221/http://www.bbc.co.uk/pressoffice/pressreleases/stories/2005/11_november/08/hdtv.shtml | archive-date = 18 May 2006 | url-status = live }}</ref> On 3 November 2010, a high-definition simulcast of BBC One was launched, entitled [[BBC One HD]], and BBC Two HD launched on 26 March 2013, replacing BBC HD. Scotland's new television channel, BBC Scotland, launched in February 2019.<ref>{{Cite web|title=BBC Scotland – BBC Scotland – Welcome to your brand new television channel: BBC Scotland|url=https://www.bbc.co.uk/programmes/articles/1hx87NrNp3Y45hF2NyQDhFs/welcome-to-your-brand-new-television-channel-bbc-scotland|website=BBC|language=en-GB|access-date=16 May 2020|archive-date=7 November 2020|archive-url=https://web.archive.org/web/20201107233207/https://www.bbc.co.uk/programmes/articles/1hx87NrNp3Y45hF2NyQDhFs/welcome-to-your-brand-new-television-channel-bbc-scotland|url-status=live}}</ref>

In the Republic of Ireland, Belgium, the Netherlands and Switzerland, the BBC channels are available in a number of ways. In these countries digital and cable operators carry a range of BBC channels. These include BBC One, BBC Two, BBC Four and BBC World News, although viewers in the Republic of Ireland may receive BBC services via overspill from transmitters in Northern Ireland or Wales, or via "deflectors"—transmitters in the Republic which rebroadcast broadcasts from the UK,<ref>[https://www.independent.co.uk/news/media/aerial-warfare-1268455.html Aerial warfare] {{Webarchive|url=https://web.archive.org/web/20171009190739/https://www.independent.co.uk/news/media/aerial-warfare-1268455.html |date=9 October 2017 }}, [[John Waters (columnist)|John Waters]], ''[[The Independent]]'', 21 April 1997</ref> received off-air, or from digital satellite.

Since 1975, the BBC has also provided its TV programmes to the [[British Forces Broadcasting Service|British Forces Broadcasting Service (BFBS)]], allowing members of [[Military of the United Kingdom|UK military]] serving abroad to watch them on four dedicated TV channels. From 27 March 2013, BFBS will carry versions of BBC One and BBC Two, which will include children's programming from [[CBBC (TV channel)|CBBC]], as well as carrying programming from [[BBC Three]] on a new channel called [[Forces TV|BFBS Extra]].

Since 2008, all the BBC channels are available to watch online through the [[BBC iPlayer]] service. This online streaming ability came about following experiments with live streaming, involving streaming certain channels in the UK.<ref>{{cite web |url=https://www.bbc.co.uk/pressoffice/pressreleases/stories/2008/11_november/19/simulcast.shtml |title=BBC One and BBC Two to be simulcast from 27 November |publisher=BBC |date=19 November 2008 |access-date=15 November 2011 |archive-url=https://web.archive.org/web/20110825055004/http://www.bbc.co.uk/pressoffice/pressreleases/stories/2008/11_november/19/simulcast.shtml |archive-date=25 August 2011 |url-status=live }}</ref> In February 2014, Director-General Tony Hall announced that the corporation needed to save £100&nbsp;million. In March 2014, the BBC confirmed plans for BBC Three to become an internet-only channel.<ref>{{cite news|url=https://www.bbc.co.uk/news/entertainment-arts-26447089|work=BBC News|access-date=5 March 2014|title=BBC Three to be axed as on-air channel|date=5 March 2014|archive-url=https://web.archive.org/web/20140305163013/http://www.bbc.co.uk/news/entertainment-arts-26447089|archive-date=5 March 2014|url-status=live}}</ref>