The Carol Burnett Show is an American variety/sketch comedy television show that originally ran on CBS from September 11, 1967, to March 29, 1978, for 279 episodes, and again with nine episodes in fall 1991. It starred Carol Burnett, Harvey Korman, Vicki Lawrence and Lyle Waggoner. In 1975, frequent guest star Tim Conway became a regular cast member after Waggoner left the series. In 1977, Dick Van Dyke replaced Korman, but it was agreed that he was not a match and he left after 10 episodes.