13. Cool Guests
As is the case with any successful variety show, guests have an impact on viewership. Children will tune in for the treats, but the adults will tune in for the big name stars. To name a few stars, Jodie Foster, Billy Crystal, Jim Henson, and Dick Van Dyke all made appearances. So did Joe Frazier and Muhammed Ali. That episode aired shortly before their fight, like a little pre-show marketing, where Frazier and Ali duked it out over a marbles game.