Sitcoms that are funny, and you know they're funny and you get a good laugh from them, but you don't watch religiously/regularly like other shows. For me, it's these:

Mama's Family
3rd Rock From the Sun
Everybody Loves Raymond

Carol Burnett and Friends
The King of Queens
3rd Rock from the Sun
and more.... but Im drawing a blank.

Sanford and Son. It is my favorite sitcom of all time but I never watch it on a regular basis.

"The King of Queens"

That 70s Show. I find this show hilarious, but I don't watch it very often....