- Discovery HD
Discovery HD Launched 2005 Owned by Discovery Communications Country United States Language English Availability Satellite Dish TV
Channel 9487 Airtel Digital TV
Channel 338 Sun Direct DTH
Channel 964 D-Smart
Channel 113 n
Channel 71 Canal Digital
Channel 150 Premiere
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Channel 164 Vidéotron
Channel 725 Zon
Channel 101 Cabovisão
Channel 222 UPC Romania
Channel 182 UPC Poland
Channel 376 IPTV iNES
Channel TBA now TV
The international Discovery HD (now Discovery HD World in Asia-Pacific markets) first launched in Korea on February 2005 as a programming block. In December 2005, Discovery HD Japan and Discovery HD Canada (since renamed Discovery World HD) launched as 24-hour channels, becoming the 100th and 101st Discovery networks overall. After this, Discovery HD expanded into other markets as follows:
- February 2006 in Germany and Austria on the Sky Germany satellite platform.
- May 2006 in the United Kingdom and Ireland on Sky Digital with the launch of the Sky+ HD service.
- October 2006 in Poland on the n platform and the Netherlands.
- November 1, 2006 in the Nordic countries when Canal Digital launched their HD package in Sweden, with Denmark, Finland and Norway following in 2007.
- January 18, 2007 in Singapore on the StarHub TV platform 
- January 31, 2008 in Hong Kong on now TV.
- 2008 in Russia on NTV Plus.
- March 1, 2009 in South Korea on Skylife
- April 1, 2009 in Czech Republic on Sky Link as Discovery HD Showcase
- June 2008 in Australia on Foxtel HD+ and Turkey on HD-Smart.
- May 2009 in Philippines on SkyCable
- July 2009 in Italy on Sky Italia
- December 2009 in Southern Africa on DStv 
- February 2010 in the Arab World on Orbit Showtime
- February 2010 in India as Discovery HD World India.
- March 5, 2010 in India on Sun Direct DTH
- April 1, 2010 in the United Kingdom on Virgin Media.
- June 2, 2010 in Portugal on Zon as Discovery HD Showcase.
- September 1, 2010 in Romania on UPC Romania DVB-C as Discovery HD Showcase
- September 6, 2010 in Portugal on Cabovisão DVB-C as Discovery HD Showcase
The first American HD Discovery channel has the name Discovery HD Theater, now just HD Theater, and launched in June 2002.
A second Discovery HD channel, called 'Discovery Channel HD', was launched in the USA on Dish Network the week of August 13, 2007. This new channel simulcasts the main Discovery Channel feed, but airs high-definition versions of programming when available. It is also available on DirecTV and various U.S. cable operators along with fellow sister high definition version networks TLC, Animal Planet, and Science Channel. 
- ^ CASBAA Member News http://www.casbaa.com/media-and-resources/news-center/members-news/355-discovery-hd-rebrands-to-discovery-hd-world
- ^ Discovery Communications announces 100th network milestone
- ^ Discovery HD launches in Singapore
- ^ Discovery World now on DStv
- ^ "Virgin Media customers to get Discovery HD channel and more HD programmes on demand". Virgin Media. 2010-02-10. http://pressoffice.virginmedia.com/phoenix.zhtml?c=205406&p=irol-newsArticle&ID=1385942&highlight=.
- ^ "Novidade: Discovery HD Showcase". Telesatelite.net. 2010-06-03. http://www.telesatelite.net/novidades/tp.asp/tp/11050/novidade-discovery-hd-showcase.html.
- ^ Dish Network available HD programming
Discovery Communications Ownership United States Australia Asia
Discovery Channel Southeast Asia · Discovery Channel Taiwan · Discovery Channel (Japan) · Discovery Channel Korea · Animal Planet Asia · Animal Planet Taiwan · Animal Planet (Japan) · Discovery TLC Asia · Discovery TLC Taiwan · Discovery Science Southeast Asia · Discovery Home and Health Southeast Asia · Discovery Turbo Asia · Discovery HD Asia · Discovery HD Japan
India UK/Ireland Poland Italy France Germany Europe,
Discovery Channel Africa · Discovery Channel Benelux · Discovery Channel Denmark · Discovery Channel Europe · Discovery Channel Finland · Discovery Channel Hungary · Discovery Channel Middle East · Discovery Channel Norway · Discovery Channel Romania · Discovery Channel Sweden · Discovery Channel Turkey · Animal Planet Africa · Animal Planet Benelux · Animal Planet Europe/ME · Animal Planet Nordic · Animal Planet Romania · Discovery Science Europe/ME · Discovery World Europe · Discovery Travel & Living Europe · Investigation Discovery · Discovery HD
Discovery Channel Latin America · Discovery Channel Venezuela · Discovery Channel Mexico · Discovery Channel Argentina · Discovery Channel Iberia (Spain/Portugal) · Animal Planet Latin America · Discovery Kids Latin America · Discovery Kids Mexico · Liv Latin America · Liv Argentina · Liv Mexico · Discovery Home & Health Latin America · Discovery Science Latin America · Discovery Civilization Latin America · Discovery Turbo Latin America TLC Latin America ·
Brazil Canada Other
Cosmeo · Discovery Commerce · Discovery Education · "I Love the World"
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