BBC One - BBC One HD

BBC One HD, a simulcast of BBC One in high-definition (HD), launched on 3 November 2010 at 19:00. The channel simulcasts a network version of BBC One in High Definition, with HD versions of programmes including Holby City, The One Show, Strictly Come Dancing, The Apprentice, The Weakest Link and Doctor Who. EastEnders was also made available in HD as from Christmas Day 2010. All programmes still made in standard-definition are upscaled on the channel and it is intended that by 2012 the vast majority of the channel's output will be in high-definition.

BBC One HD, however, does not offer regional variations, and therefore the channel cannot broadcast during regional programming slots, most noticeably the local news programmes. The BBC Trust admitted that this is due to technical and financial constraints, 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 in 2012. On 24 October 2012, Northern Ireland received the first variation.

BBC One HD is available on all digital television platforms offering HD channels – Freesat, Freeview HD, Sky, Smallworld Cable, UPC Ireland and Virgin Media. It is available in addition to the existing BBC HD channel, which continues to broadcast HD programmes from the BBC's other television channels.