Network: CBS
Air Dates: September 19, 1970–March 19, 1977
Stars: Mary Tyler Moore, Edward Asner, Valerie Harper, Gavin MacLeod, Ted Knight, Georgia Engel, Betty White, Cloris Leachman

Almost all women in comedy have The Mary Tyler Moore Show to thank. Without Mary iconically tossing her hat in the air, we'd have no Murphy Brown, and certainly no 30 Rock. The Mary Tyler Moore Show did one thing that changed television forever: It had a single working woman in her thirties as the main character, and she wasn't widowed or divorced. That was groundbreaking. Plus, it was really  funny. It's regarded as the most acclaimed television show ever produced, and made the situation comedy something more than recycled plots and characters. —TA