September 20, 1967
Episode 1 of Season 18 premiered on September 20, 1967
October 16, 1967
Episode 2 of Season 18 premiered on October 16, 1967
November 29, 1967
Episode 3 of Season 18 premiered on November 29, 1967
December 14, 1967
Episode 4 of Season 18 premiered on December 14, 1967
January 18, 1968
Episode 5 of Season 18 premiered on January 18, 1968
February 12, 1968
Episode 6 of Season 18 premiered on February 12, 1968
March 20, 1968
Episode 7 of Season 18 premiered on March 20, 1968