In no particular order, I've enjoyed these ones:-
Frasier
Vicar of Dibley
Father Ted
Blackadder
Not The Nine O'clock News
Due South
Open All Hours
Porridge
Morcombe & Wise
Third Rock From The Sun
Drop the Dead Donkey
Goodness Gracious Me
The Grimleys
The Two Ronnies
The Likely Lads
Keeping Up Appearances
Ab Fab
Bremner Bird & Fortune
Police Squad
Dad's Army