I know a lot of UK sitcoms get a lot of praise on here so I was interested to see which ones (past and present) TiBB are fond of. Oh and feel free to include cartoons
For all time I'd go with:
1) The Simpsons (just for up to season 11-12ish)
2) Frasier
3) Curb Your Enthusiasm
4) 30 Rock
5) The Larry Sanders Show
(I know, I know... Seinfeld is probably the greatest, but I've never gotten round to seeing it)
For current I'd go with:
1) Louie
2) Parks and Recreation
3) Archer
4) Modern Family
5) Family Guy (the most recent season was a real return to form, and by comparison American Dad's most recent season was unbearable)