The Simpsons (Season 4)

By its fourth season, "The Simpsons" had come far enough for Lisa to make a self-referential joke about Dustin Hoffman's and Michael Jackson's pseudonymous guest voice appearances in series 2 and 3, respectively. In this series, no less than Elizabeth Taylor (in two episodes), Bette Midler and even the reclusive Johnny Carson blessed The Simpsons with their iconic presences.