For those that don't know (just a few) we in the UK have a licence fee levied upon everybody that owns a television. I won't go into the wrinkles of who pays what for their TV's/Computers in any particular household, suffice to say that most of the properties in the UK pay £139.50 per year (only £47 if the set is black&white!) and in return, the BBC can operate without adverts.
(Apart from annoyingly long ones for their own programmes).
There is a certain portion of the UK population (usually just the newspapers actually) that would like the BBC to start playing adverts, thus negating the need for a licence fee.
Well, go to Gideon's home page and listen again to one of the shows that take your fancy; you won't be disappointed, and to my mind, it more than justifies the framework that allows un-interrupted music of the calibre to be found on that list.