Here's just a few sitcom's on the broadcast networks only from current and recent years.
Seinfeld
The Drew Carey Show
Everybody Loves Raymond
The George Lopez Show
The Geena Davis Show
Reba
Suddenly Susan
The Bernie Mac Show
Emeril
The Ellen Show
The Hughleys
Life with Bonnie
Malcolm and Eddie
The Michael Richards Show
The Steve Harvey Show
Titus
What About Joan
The Andy Richter Controls The Universe
Cosby
Bette
So much for network executive's having a learning curve. *g*
Wasn't "Suddenly Susan" about Brooke Shields?
Also, you ever heard of a show called "Seinfeld?"