HD content saw several changes. 2010 had been the BBC's internal deadline for the majority of new content to be produced in HD and as a result the broadcast space was fast running out. As a result, on 3 November 2010, BBC One HD launched as a separate simulcast of the channel and at approximately the same time, BBC HD's broadcast hours were extended to twelve hours a day. Due to BBC One HD’s launch, BBC HD on Virgin Media moved from channel 108 to channel 187. The channel now catered for the programming of the BBC's channels other than BBC One. From 2011, the channel also began to experiment with showing select programmes in 3D. The first such broadcasts were the live men's and women's finals of the 2011 Wimbledon Championships and continued with the broadcast of that year's Strictly Come Dancing final in December. 2012 saw one of the most ambitious levels of 3D coverage with the BBC screening the opening and closing ceremonies and the men's 100m final of the 2012 Summer Olympics including a daily highlights programme in 3D. In addition to this, the channel also broadcast in 3D the men's and women's finals of the 2012 Wimbledon Championships, the natural history programme Planet Dinosaur Ultimate Killers in August, the second half of the Last Night of the Proms on 8 September 2012, the adaptation of Mr Stink on 23 December 2012 and Killer Dinosaurs and the Royal Christmas Message on 25 December. Closure Initial reports of the closure of the channel began to surface in July 2011 when Broadcast magazine claimed that the BBC HD would become more of a simulcast of BBC Two when Danielle Nagler, head of HD and 3D at the BBC, left the corporation in September. Although this was later disproved, it caused speculation about the channel's future given that the new head of the channel was Janice Hadlow, controller of BBC Two. The channel's future was again called into question following the BBC's Delivering Quality First review of the corporation's spending. The review sought cost-cutting measures following the government settlement that froze the license fee, reducing the BBC's income, and saw the corporation take on additional responsibility for funding some services. The review recommended that BBC HD should close and be replaced with a simulcast of BBC Two. The proposals were approved by the BBC Trust in May 2012 and