Well, I guess there isn't a viewers' poll for the BBC but reading the ITV one made me wonder if a BBC one would end up looking just as poor... Naturally this will be skewed by the DiS demographic. Suggest everyone names 3 and then we could compile a top 50 from those?

Bugger my arse, it's hard, but I'll go with:
1) Monty Python's Flying Circus
2) Blackadder
3) The Crow Road

Three is hard...