Discovery HD is the international name of the high-definition television channels from Discovery Communications. The international Discovery HD (later Discovery HD World in Asia-Pacific markets, now Discovery Asia) first launched in Korea in February 2005 as a programming block. In December 2005, Discovery HD Japan and Discovery HD Canada (since renamed Discovery World HD, now Discovery Velocity) launched as 24-hour channels, becoming the 100th and 101st Discovery networks overall. After this, Discovery HD expanded into other markets as follows: * The 2005-2008 logo * *