This episode includes the first standup comediennes to appear on television-legends like Phyllis Diller, and Joan Rivers. We also look at Lucille Ball's breakthrough on I Love Lucy, and the sitcom stars that followed, including Mary Tyler Moore, Betty White, and Marla Gibbs. In addition, this episode features interviews with contemporary actresses who were inspired by the trailblazers of an earlier era-including Margaret Cho and Tina Fey. Interviews: Tina Fey, Joan Rivers, Mary Tyler Moore, Betty White, Marla Gibbs, Margaret Cho and Phyllis Diller.