+1 for hatred of Mrs Browns Boys - but this is the awesome thing about TV/Movies - there is something out there for everyone, and both formats have so much variety to cater for all tastes.
I define sitcom as something filmed in front of a studio audience, so for me my favorites are:
Vicar of Dibley, Miranda, and I still belly laugh from the Golden Girls - it was so well written and performed even by todays standards. " eat dirt and die, trash" - Blanche - I quote this pretty much every other day to someone lol....