The Licence goes back to the days of Marconi, He conned the government of the time into allowing him to have royalties not only on all radio transmissions but also on all receivers manufactured or sold in the UK, it was not until the late 1960's that all receiver sets had to have a small plastic label with the Marconi licence number inside them. There was a court case recently where it was decided that if you watched tv programs on the internet and did not have a TV receiver you did not require a TV licence so I guess the writing is on the wall for the present system.