This episode features the first standup comediennes to appear on television - legends such as Phyllis Diller and Joan Rivers. It also looks at Lucille Ball's breakthrough on "I Love Lucy" and the sitcom stars who followed, including Mary Tyler Moore, Betty White and Marla Gibbs. The episode covers television's most enduring variety star, Carol Burnett, and features interviews with contemporary actresses including Tina Fey and Margaret Cho.