Its a polluted genre but i enjoy the following fine television programs...
Lucky Louie(only traditional sitcom with a live audience that has profanity, was on HBO)
Sanford & Son
All in the Family
Everybody Loves Raymond(Peter Boyle as the dad was hilarious, i liked all the characters except Debra...that bitch)
Can count these as sitcoms too I guess...
Curb your enthusiasm(the best)
Office(UK, US Michael Scott era)
Louie(Another hilarious Louie CK show)
King of the Hill(Favorite animated sitcom? wont list the others because they're pretty obvious. Mike judge characters are the best.)
My Name is Earl(Ive seen this a few times, seems amusing...cant fuck with anything else ive listed though)