I used to do this when I lived in London before. A good free night out. Saw Question of Sport, a couple of comedy shows and even Top of the Pops at one time. But this is only really for Londeners. There is also LostInTV and the BBC have their own audience website. Check them out. Popular shows often have waiting lists but there is so much filler TV now a days there is always something.
I tried last time and got tickets to the celeb chase. was pretty good.
Tried last time, no tickets but lots of junk mail
Applied not expecting much haha
Welcome to 2005