Fitz wrote:

I would say:

Green Acres
Leave it to Beaver
Dennis The Menace ( the episodes with the first Mr Wilson)
Beverley Hillbillies
Bewitched
I Dream of Jeanie
My Favorite Martian
Munsters
The Dick Van Dyke Show
Andy Griffiths ( up to the Barney Fife era)
Honorable mention Lost In Space not a sitcom but fun.

Green Acres actually stared to jell a few episodes into the first season. Once the Hank Kimbell character was fully developed. Does anyone remember that an early episode had Alf playing another character without Ralph. Also Ralph was Mrs. Kravitz on Bewitched for at leaset one episode after the first Mrs. K passed.

Also have been going thru the episodes of Rod Serling's Night Gallery and each show featured up to 3 stories and there were quite a few shorts that I would term horror/comedy.
 

Yes. Green Acres. I had forgotten about that. Also, if someone hasn't already mentioned it, - Get Smart
The idea of a shoe phone was so ridiculously funny. Now there probably is such a thing.