These are the ones that I've seen and liked (most of them a lot) I may be forgetting a couple...
Monarch of the Glen Probably our favorite
Waiting for God
Are you being served?
Coupling (a bit adult for kids but very very good)
League of Gentlemen (CAUTION-very intense, very shocking, definitely an acquired taste, absolutely no kids, like Monty Python or Benny Hill on bad Acid but I liked it. This is one where it took forcing through a couple episodes to get it. Season 3 is even more shocking, if that's possible. If you get through season 1 & 2 and were boderline, I would recommend that you pass on season 3. If you were somewhat comfortable by the end of season 1 & 2, season 3 will rock you back on your heals.)
I'm currently 2 episodes into the Vicar of Dibley and am undecided.
1 disk into Father Ted and likely to get more.
There may be others that I have missed mentioning, but my question for everyone is what's next?