I was lying in bed unable to sleep and an old 90's sitcom came on, Grace Under Fire and it just made me think about how many sitcoms starred comedians or comediennes. They were pretty popular back then.
Grace Under Fire- Brett Butler
Roseanne-Roseanne Barr
Seinfeld-Jerry Seinfeld
Home Improvement-Tim Allen
Ellen-Ellen DeGeneres (This was the sitcom she starred in before her talk show.)
The Larry Sanders Show-Garry Shandling

See if you can think of anymore, I know I'm missing some.

The John Larroquette Show - John Larroquette

Dave's World - Harry Anderson

The King of Queens - Kevin James
Everybody Loves Raymond - Ray Romano

The obvious, Bill Cosby in "The Cosby Show" & "Cosby".

Garry Shandling. It's The Garry Shandling Show.

Bob Newhart:

--Two Bob Newhart Shows (one a short-lived 60s NBC variety show, and the other the more famous 1972-78 CBS comedy)
--Newhart (1982-90, CBS)
--Bob (1992-93, CBS)
--George & Leo (1997-98, CBS)

Joey Bishop - The Joey Bishop show

Garry Shandling. It's The Garry Shandling Show.
the title was "IT'S GARRY SHANDLINGS SHOW"

Tim Conway-"THE TIM CONWAY SHOW"
Dan Rowan & Dick Martin-"ROWAN & MARTINS LAUGH-IN"
Tom & Dick Smothers-"THE SMOTHERS BROTHERS SHOW" and "THE SMOTHERS BROTHERS COMEDY HOUR"
Jack Benny-"THE JACK BENNY SHOW"
Bud Abbott & Lou Cosstelo-"THE ABBOTT & COSSTELO SHOW"

Martin Lawrence - "Martin"
Drew Carey - "The Drew Carey Show"
Bob Saget and Dave Coulier - "Full House"


George Carlin (one of my fav. stand-ups) had "The George Carlin Show" (1994-95), but it was not successful.