Editing BBC Four (section)

==BBC Four HD==
[[File:BBC Four HD Logo.svg|thumb|right|150px|BBC Four HD logo (2013–2021)]]
On 16 July 2013, the BBC announced that a [[High-definition television|high-definition]] (HD) [[simulcast]] of BBC Four would be launched by early 2014.<ref>{{cite web|url=https://www.bbc.co.uk/news/technology-23326709|title=BBC to launch five new HD channels|work=BBC News|date=16 July 2013|access-date=16 July 2013}}</ref> The channel launched on 10 December 2013 at 18:58 GMT, and rolled out nationwide up to June 2014 (as did [[BBC News (British TV channel)|BBC News HD]], [[CBBC HD]] and [[CBeebies|CBeebies HD]]).<ref>{{cite web|url=https://www.bbc.co.uk/mediacentre/latestnews/2013/new-hd-channels.html|title=BBC to launch five new subscription-free HD channels on Tuesday 10 December|publisher=[[BBC]]|date=9 December 2013|access-date=9 December 2013|archive-date=11 December 2013|archive-url=https://web.archive.org/web/20131211204948/http://www.bbc.co.uk/mediacentre/latestnews/2013/new-hd-channels.html|url-status=dead}}</ref> The channel shares its stream with [[CBeebies|CBeebies HD]], as they both air at different times. In June 2022, BBC Four HD moved from the COM7 multiplex on Freeview to Multiplex B due to the closure of COM7 for spectrum reallocation; this move allows the service to reach nearly the entirety of the UK.<ref>{{Cite web |last=Newsdesk1 |first=RXTV |date=2022-06-23 |title=Two days of Freeview retuning: your guide to all the changes |url=https://rxtvinfo.com/2022/two-days-of-freeview-retuning-your-guide-to-all-the-changes/ |access-date=2024-03-04 |website=RXTV info |language=en-GB}}</ref><ref>{{Cite web |date=2022-06-02 |title=BBC Freeview changes: BBC Four HD reprieved for now; gets wider coverage |url=https://rxtvinfo.com/2022/bbc-making-changes-to-freeview-hd-channels/ |access-date=2024-03-04 |website=RXTV info |language=en-GB}}</ref>

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.