38. The Courtroom
Original Airdate: October 11th, 1975
Taboo subject matter (it's a joke about sexual assault, though they were able to demonstrate legitimate disgust), an unforgettable performance from Gilda Radner, and a big payoff. From the very first episode – airing between Billy Preston performing "Nothing From Nothing" and Andy Kaufman's brilliant Mighty Mouse pantomime – comes a structurally simple and socially complicated sketch that set the tone for the next 39 years.