High definition technology, although a relatively recent development, has been taking the world of television by storm as more and more people upgrade to a higher image quality. As soon as HD televisions became widely available to the general public, digital broadcaster Sky were quick to offer a range of HD channels to complement their already vast catalogue. These were not new channels, but HD versions of some of the most popular existing channels on Sky such as Sky 1 HD and E4 HD, as well as versions of free to view channels like BBC One and Channel 4.Read