Extras

Video thumbnail: Pioneers of Television Cloris Leachman Talks Comedy

Cloris Leachman Talks Comedy

Video thumbnail: Pioneers of Television Jimmie Walker on "Good Times"

Jimmie Walker on "Good Times"

Video thumbnail: Pioneers of Television Dick Van Dyke's Knack for Physical Comedy

Dick Van Dyke's Knack for Physical Comedy

Video thumbnail: Pioneers of Television Professor Cosby

Professor Cosby

Video thumbnail: Pioneers of Television Margaret Cho on "All-American Girl"

Margaret Cho on "All-American Girl"

Video thumbnail: Pioneers of Television George Takei on being an Asian-American

George Takei on being an Asian-American

Video thumbnail: Pioneers of Television Diahann Carroll on "Julia"

Diahann Carroll on "Julia"

Video thumbnail: Pioneers of Television Bill Cosby Revives the Sitcom

Bill Cosby Revives the Sitcom

Video thumbnail: Pioneers of Television St.Elsewhere "Got it Right"

St.Elsewhere "Got it Right"

Video thumbnail: Pioneers of Television Noah Wyle as Dr. John Carter

Noah Wyle as Dr. John Carter

Video thumbnail: Pioneers of Television Howie Mandel on "St. Elsewhere"

Howie Mandel on "St. Elsewhere"

Video thumbnail: Pioneers of Television George Clooney and his "Powerful Pen"

George Clooney and his "Powerful Pen"

Video thumbnail: Pioneers of Television Tim Allen's Transition to TV

Tim Allen's Transition to TV

Video thumbnail: Pioneers of Television Tim Allen on his First "Tonight Show" Appearance

Tim Allen on his First "Tonight Show" Appearance

Video thumbnail: Pioneers of Television Season Four Preview

Season Four Preview

Video thumbnail: Pioneers of Television Roseanne Barr, Working Class Feminist

Roseanne Barr, Working Class Feminist

Video thumbnail: Pioneers of Television Jerry Seinfeld on "Getting Laughs"

Jerry Seinfeld on "Getting Laughs"

Video thumbnail: Pioneers of Television Creating "Seinfeld"

Creating "Seinfeld"

Video thumbnail: Pioneers of Television Bob Newhart on Listening Funny

Bob Newhart on Listening Funny

Video thumbnail: Pioneers of Television  Jonathan Winters' Improvisational Comedy

Jonathan Winters' Improvisational Comedy

Video thumbnail: Pioneers of Television Jimmie Walker on "Taking the Pie"

Jimmie Walker on "Taking the Pie"

Video thumbnail: Pioneers of Television Breaking Barriers Preview

Breaking Barriers Preview

Video thumbnail: Pioneers of Television Acting Funny Preview

Acting Funny Preview

Video thumbnail: Pioneers of Television Doctors and Nurses Preview

Doctors and Nurses Preview

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