I associate a lot of these with the 80s, which is why I voted for it. Different Strokes, Facts of Life, Jeffersons, Laverne & Shirley, Love Boat (sitcom?), even 3s Company - those are all 80s shows to me.
I can honestly say that I enjoy all Seinfeld episodes no matter how many times I have seen them. Of course when I was a kid I was glued to the tube watching mostly 60's sitcoms. I voted 90's only because of Seinfled. If Seinfeld didn't exist, I would have went for the cheesy sitcoms of the 60's.
http://www.tvland.com/shows/litbeaver/ Though the original series left prime time in September 1963, it has remained a regular in reruns ever since. I could have sworn that LITB made it to color :s 6 year run seems about 3/4 years short. Well at least Dick Van Dyke was a 60s only show. I got something right.
That URL No Worries posted is disturbing... I'm talking about the words in the link itself. "Ward, weren't you a little hard on the Beaver last night?"