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1:19
Dick Van Dyke loved to perform physical comedy, even if the script didn't call for it.
1:18
Walker's "Good Times" character was such a hit, he changed the direction of the sitcom.
1:48
Despite "Good Times" producer Norman Lear's wishes, Jimmie Walker was there to be funny.
Classic comedian Jonathan Winters was at his best when he was improvising.
1:27
Together, comics Jerry Seinfeld and Larry David created the hit sitcom "Seinfeld" in 1989.
2:01
Legendary comedian Bob Newhart describes his first TV role as psychologist Robert Hartley.
1:53
With her sitcom, Roseanne Barr made waves by fearlessly tackling difficult issues.
1:35
Larry Hagman and Patrick Duffy talk about balancing the good and the bad in "Dallas."
2:42
When sitcom star Tim Allen first appeared on Johnny Carson's "Tonight Show," he bombed.
1:04
George Clooney used his popularity to speak out against discrimination.
