Editing BBC One (section)

===BBC One HD===
[[File:BBC One HD.svg|thumb|right|BBC One HD logo (2010–2021)]]
'''BBC One HD''', a [[simulcast]] of BBC One in [[1080i]] [[High-definition television|high definition]] (HD), launched on 3 November 2010 at 19:00 with ''The One Show''.<ref>{{cite web|url=https://www.bbc.co.uk/pressoffice/pressreleases/stories/2010/10_october/21/bbconehd.shtml|title=BBC One HD Channel to launch 3 November and EastEnders to go HD on Christmas Day|publisher=BBC Press Office|date=21 October 2010}}</ref> The channel simulcasts the national version of BBC One in High Definition, with HD versions of programmes including ''[[Doctor Who]]'', ''[[Holby City]]'', ''[[The One Show]]'', ''[[Strictly Come Dancing]]'' and ''[[The Apprentice (British TV series)|The Apprentice]]''. ''[[EastEnders]]'' was also made available in HD from Christmas Day 2010. All programmes still made in standard definition were upscaled on the channel, with the intention that by 2012 the vast majority of the channel's output would be in high definition. On 30 May 2012,{{citation needed|date=September 2018}} the satellite and terrestrial resolution was increased to [[1080p|full HD]].

BBC One HD at launch did not offer regional variations, and therefore the channel could not broadcast during regional programming slots, most noticeably the local news programmes. The BBC Trust admitted that this was due to technical and financial constraints,<ref>{{cite web|url=https://www.bbc.co.uk/bbctrust/news/press_releases/2010/hd.html |title=BBC One goes high definition |publisher=BBC Trust |date=28 May 2010 }}</ref> but the BBC announced on 6 June 2011 that the national variations of BBC One Northern Ireland, BBC One Scotland and BBC One Wales, would become available from 2012.<ref>{{cite web|url=http://downloads.bbc.co.uk/aboutthebbc/reports/pdf/workplan_0611.pdf |title=BBC Executive priorities and summary workplan for 2011/12|page=11|work=[[BBC Online]]|access-date=6 June 2011|archive-url= https://web.archive.org/web/20110626121339/http://downloads.bbc.co.uk/aboutthebbc/reports/pdf/workplan_0611.pdf |archive-date=26 June 2011|url-status=live}}</ref><ref>{{cite web|url=https://www.bbc.co.uk/blogs/blogaboutthebbc/posts/Satellite-Shuffling-reducing-BBC-Red-Button-and-expanding-BBC-One-HD|title=BBC – Blogs – About the BBC – Satellite Shuffling: reducing BBC Red Button and expanding BBC One HD|last=Pryde|first=Alix|work=[[BBC Online]]|access-date=2 October 2012|archive-date=19 April 2013 |archive-url=https://archive.today/20130419231841/http://www.bbc.co.uk/blogs/blogaboutthebbc/posts/Satellite-Shuffling-reducing-BBC-Red-Button-and-expanding-BBC-One-HD |url-status=dead}}</ref> On 24 October 2012, Northern Ireland received the first variation. A Scottish variation launched on 14 January 2013, followed by a Welsh variation on 29 January 2013.<ref>{{cite web|url=https://www.bbc.co.uk/blogs/aboutthebbc/posts/Launching-BBC-One-Scotland-HD-and-BBC-One-Wales-HD|title=Launching BBC One Scotland HD and BBC One Wales HD|publisher=BBC|date=11 January 2013}}</ref> On 16 July 2013, the BBC indicated that it also wants to launch regional variants of BBC One HD across England; however, this would require the approval of the BBC Trust, with a proposal due to be presented within six months.<ref>{{cite web |url=https://www.bbc.co.uk/mediacentre/latestnews/2013/BBCHDChannels.html |title=BBC to launch five new subscription-free HD channels |publisher=BBC Media Center |date=16 July 2013 |access-date=17 July 2013 |archive-date=26 July 2018 |archive-url=https://web.archive.org/web/20180726121230/https://www.bbc.co.uk/mediacentre/latestnews/2013/bbchdchannels.html |url-status=dead }}</ref> On 18 November 2013, the Northern Irish regional variant of BBC One HD was swapped with the SD channel on Sky's EPG for HD subscribers. This was followed by the Welsh and Scottish variants on 10 December.<ref>{{cite web|last=Pryde |first=Alix |url=https://www.bbc.co.uk/blogs/aboutthebbc/posts/CBBC-HD-CBeebies-HD-BBC-Three-HD-BBC-Four-HD-and-BBC-News-HD-to-launch-on-Tuesday-10-December-2013 |title=CBBC HD, CBeebies HD, BBC Three HD, BBC Four HD & BBC News HD launch Tuesday 10 December 2013 |publisher= BBC |date=9 December 2013 |access-date=10 December 2013}}</ref> On 24 March 2014, BBC One Scotland, Wales and Northern Ireland HD launched on Freesat, Sky and Virgin Media outside the regions they were originally seen in.

On 31 March 2016, BBC One HD in England moved from channel 141 on the Sky [[Electronic program guide|electronic programme guide]] to channel 115, a position vacated by [[BBC Three]], which had been switched to [[BBC Three (online)|internet-only]] six weeks earlier. Changes in Scotland, Wales, and Northern Ireland were also scheduled but delayed for 'technical reasons'.<ref>[http://www.a516digital.com/2016/03/bbc-channel-changes-31st-march.html ''BBC channel changes 31st March'', a516digital, 31 March 2016].Retrieved: 5 April 2016.</ref>

==== Regionalised BBC One HD launch ====
On 22 November 2022, the BBC announced<ref>{{Cite web |last=Clifton |first=Kieran |date= |title=Goodbye red slate. Hello BBC One in HD for everyone.... |url=https://www.bbc.co.uk/mediacentre/articles/2022/BBC-One-HD-rollout-England |url-status=live |website=BBC Media Centre |archive-url=https://web.archive.org/web/20230209232633/https://www.bbc.co.uk/mediacentre/articles/2022/BBC-One-HD-rollout-England |archive-date=9 February 2023 }}</ref> that BBC One would finally be regionalised on their HD channels. This move started on Sky Glass, followed by Virgin Cable, and then in the 2023 new year, HD programmes were launched on satellite. With the launch of the HD channels, this also meant the closure of the SD channels. SD channels were shut on satellite 24 hours after the launch of the HD channel, and were moved up to the Channel 1/Channel 101 slot on the EPG. Viewers with older standard definition set-top boxes would no longer be able to receive BBC One. All BBC satellite channels in standard definition closed on 8 January 2024.

BBC Alba HD, BBC Red Button 1 HD and BBC Parliament HD also launched on satellite at a similar time.<ref>{{Cite web |last=Manning |first=Mike |title=BBC HD satellite upgrade timetable |url=https://cleanfeed.thetvroom.com/16611/news/bbc-hd-satellite-upgrade-timetable/ |website=The TV Room's Clean Feed|date=23 January 2023 }}</ref> The BBC and Freesat launched a website with a guide, telling users how to make sure they are upgraded at [https://www.hdsatelliteupgrade.co.uk www.hdsatelliteupgrade.co.uk].

Regional programming began on BBC One HD in certain regions on 22 March 2023; it began in the remaining regions on 26 April 2023, as well as regionalised versions launching on Freeview that same day.