 ", and "The Late Show with David Letterman".In 2003 he appeared on "Da Ali G Show" and, in 2008, was interviewed by Triumph the Insult Comic Dog on "Late Night with Conan O'Brien".In 1988, Nader appeared on "Sesame Street" as "a person in your neighborhood", the episode also featuring Barbara Walters and Martina Navratilova.