Which is the worst sitcom ever?

There is too many. But If I had to pick only just one then it would be Taxi.

Others worth mentioning:
Maude
The Beverly Hillbillies

Hello,Larry

The one I can think of now is Rags To Riches they were so annoying with their lame sing all the time.

The Golden Girls. I can't stand that show! My college roommate last year just loved them and would watch them all the time on Lifetime. I always had to find some excuse to leave the room.

There's one more show I remember DOLLY with the socalled new Dolly Parton who looked to thin and fake. I hated this show because I miss the sexxy full figure Dolly and wondered why did she lose all that weight for?