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BBC HD began broadcasting on 15 May 2006 as a trial station to test the possibility and technical practicality of broadcasting programmes in HD. [2] [3] The first programme to be broadcast that was specifically made for HD was natural history programme Planet Earth, which was shown on 27 May 2006.
BBC One HD launched at 19:00 on 3 November 2010. In July 2011, rumours began to surface about BBC HD being replaced by BBC Two HD. These were originally rejected, but on 6 October 2011 it was confirmed that the BBC planned to replace BBC HD with a single version of BBC Two HD in 2013. [3] BBC Two HD replaced BBC HD on 26 March 2013.
BBC HD is also available on Virgin Media and Freeview. BBC One HD was launched on 3 November 2010 on Sky, Virgin, Freesat and Freeview. During 2006, ITV trialled its high-definition service ITV HD. This trial was a Digital Terrestrial trial which broadcast only from the Crystal Palace transmitting station in London. The channel was transitioned ...
ARD and ZDF began testing HD broadcasts on 15 August 2009, with full simulcasts in HD from 12 February 2010. [59] The SD versions of the German channels One, tagesschau24, Arte and Phoenix were closed in November 2022. [60] ARD will follow on 7 January 2025, when Das Erste and the regional channels will discontinue their SD feeds. [61] [62]
Commercially funded BBC Studios and BBC Global News, as well as state-funded BBC World Service operate and distribute these linear television services around the world. These services are not to be confused with the domestic channels operated in the United Kingdom and accessible in the Republic of Ireland.
In May 2006 it began broadcasting the first terrestrial HDTV signals in the UK to a trial group of 450 London homes to test HD broadcasts by the BBC, ITV, Channel 4 and Channel 5, to assess the viability and potential problems of future nationwide HD broadcasting.
On 15 November 2009 it was replaced on Foxtel HD+ by UKTV HD. During the first broadcast of BBC World News America, it was announced that BBC America HD would be launched in 2008. However, the HD version did not begin broadcasting until 20 July 2009. [2] BBC HD started broadcasting to the Scandinavian countries in 2008. [3]
Standard greyscale and frequency response (1.5, 2.5, 3.5, 4, 4.5 and 5.25 MHz) tests are found on the left and right respectively of the central picture. [2] [3] On the updated version known as Test Card J (including widescreen and HD versions), the X on the noughts-and-crosses board is an indicator for aligning the centre of the screen.