Richard & Liz,
               I am much indebted to you for your succinct and wide ranging explanations. I have, naively, believed all the while that having paid the annual licence fee I, and everyone else was entitled to enjoy the airwaves, the BBC having paid all performers for their contributions. This is obviously not the case and it does now give me a different view of what Public Braodcasting Service is about. I go with tears in my eyes.