I have been waiting for the BBC to post their TV/radio archives on the web for several months, but I recently found this web site.
British Pathe Publishes Newsreel Archives
A collection of more than 12 million historic photographs from the British Pathe newsreel, was published on the Internet Monday. The British Pathe a cinema news service that pre-dated television.
The images, which date as far back to the turn of the 20th century, have been created by scanning the archive's 3,500 hours of 35mm film.