30 Rock (2006)

"Rosemary's Baby," Season 2, Episode 4 Carrie Fisher guest stars as Rosemary Howard, the trailblazing comedy writer Liz idolizes until she sees her own future in her. Fisher is superb, but the scene people rewind is Alec Baldwin hijacking Tracy's therapy session and role-playing everyone in Tracy's past. Know going in that this famous bit has Baldwin voicing a string of Black family members, and it plays differently now than it did in 2007. Even so, the episode's hit rate is among the show's highest.