October 30, 1971
Episode 1 of Season 1 premiered on October 30, 1971
October 22, 1972
Episode 2 of Season 1 premiered on October 22, 1972
October 13, 1973
Episode 3 of Season 1 premiered on October 13, 1973
May 18, 1986
Episode 4 of Season 1 premiered on May 18, 1986