 He can be heard heckling Michael McKean when McKean hosted "SNL" in 1984, and he can be seen in the sketch "The Run, Throw, and Catch Like a Girl Olympics" when Howard Cosell hosted the season finale in 1985.In 1989 David teamed up with comedian Jerry Seinfeld to create a pilot for NBC called "The Seinfeld Chronicles", which became the basis for "Seinfeld", one of the most successful shows in history, reaching the top of "TV Guide" list of the 50 greatest TV shows of all time.