April 3, 1972
Episode 1 of Season 1 premiered on April 3, 1972
May 14, 1972
Episode 2 of Season 1 premiered on May 14, 1972
July 2, 1972
Episode 3 of Season 1 premiered on July 2, 1972
August 27, 1972
Episode 4 of Season 1 premiered on August 27, 1972
October 15, 1972
Episode 5 of Season 1 premiered on October 15, 1972
December 26, 1972
Episode 6 of Season 1 premiered on December 26, 1972
April 22, 1973
Episode 7 of Season 1 premiered on April 22, 1973
May 20, 1973
Episode 8 of Season 1 premiered on May 20, 1973
July 22, 1973
Episode 9 of Season 1 premiered on July 22, 1973
December 2, 1973
Episode 10 of Season 1 premiered on December 2, 1973
January 27, 1974
Episode 11 of Season 1 premiered on January 27, 1974
February 24, 1974
Episode 12 of Season 1 premiered on February 24, 1974
August 25, 1974
Episode 13 of Season 1 premiered on August 25, 1974
November 3, 1974
Episode 14 of Season 1 premiered on November 3, 1974
January 1, 1975
Episode 15 of Season 1 premiered on January 1, 1975
February 23, 1975
Episode 16 of Season 1 premiered on February 23, 1975
June 1, 1975
Episode 17 of Season 1 premiered on June 1, 1975
September 21, 1975
Episode 18 of Season 1 premiered on September 21, 1975
December 14, 1975
Episode 19 of Season 1 premiered on December 14, 1975
February 22, 1976
Episode 20 of Season 1 premiered on February 22, 1976
May 30, 1976
Episode 21 of Season 1 premiered on May 30, 1976
September 5, 1976
Episode 22 of Season 1 premiered on September 5, 1976
November 28, 1976
Episode 23 of Season 1 premiered on November 28, 1976
December 25, 1976
Episode 24 of Season 1 premiered on December 25, 1976
February 20, 1977
Episode 25 of Season 1 premiered on February 20, 1977
April 11, 1977
Episode 26 of Season 1 premiered on April 11, 1977
May 29, 1977
Episode 27 of Season 1 premiered on May 29, 1977
August 21, 1977
Episode 28 of Season 1 premiered on August 21, 1977
October 16, 1977
Episode 29 of Season 1 premiered on October 16, 1977
February 19, 1978
Episode 30 of Season 1 premiered on February 19, 1978
April 30, 1978
Episode 31 of Season 1 premiered on April 30, 1978
May 15, 1978
Episode 32 of Season 1 premiered on May 15, 1978
December 26, 1978
Episode 33 of Season 1 premiered on December 26, 1978
March 25, 1979
Episode 34 of Season 1 premiered on March 25, 1979
June 3, 1979
Episode 35 of Season 1 premiered on June 3, 1979
July 1, 1979
Episode 36 of Season 1 premiered on July 1, 1979
January 6, 1980
Episode 37 of Season 1 premiered on January 6, 1980
July 6, 1980
Episode 38 of Season 1 premiered on July 6, 1980
December 25, 1980
Episode 39 of Season 1 premiered on December 25, 1980
January 18, 1981
Episode 40 of Season 1 premiered on January 18, 1981
June 11, 1981
Episode 41 of Season 1 premiered on June 11, 1981
July 7, 1981
Episode 42 of Season 1 premiered on July 7, 1981
October 7, 1981
Episode 43 of Season 1 premiered on October 7, 1981
February 28, 1982
Episode 44 of Season 1 premiered on February 28, 1982
July 15, 1982
Episode 45 of Season 1 premiered on July 15, 1982
August 29, 1982
Episode 46 of Season 1 premiered on August 29, 1982
August 28, 1983
Episode 47 of Season 1 premiered on August 28, 1983
November 2, 1983
Episode 48 of Season 1 premiered on November 2, 1983
November 30, 1983
Episode 49 of Season 1 premiered on November 30, 1983
January 23, 1984
Episode 50 of Season 1 premiered on January 23, 1984
September 6, 1984
Episode 51 of Season 1 premiered on September 6, 1984
September 9, 1985
Episode 52 of Season 1 premiered on September 9, 1985
January 6, 1986
Episode 53 of Season 1 premiered on January 6, 1986
March 18, 1986
Episode 54 of Season 1 premiered on March 18, 1986
June 4, 1986
Episode 55 of Season 1 premiered on June 4, 1986
August 25, 1986
Episode 56 of Season 1 premiered on August 25, 1986
July 13, 1987
Episode 57 of Season 1 premiered on July 13, 1987
January 4, 1988
Episode 58 of Season 1 premiered on January 4, 1988
March 7, 1988
Episode 59 of Season 1 premiered on March 7, 1988
July 21, 1988
Episode 60 of Season 1 premiered on July 21, 1988
August 22, 1988
Episode 61 of Season 1 premiered on August 22, 1988
March 26, 1990
Episode 62 of Season 1 premiered on March 26, 1990
April 9, 1990
Episode 63 of Season 1 premiered on April 9, 1990
April 23, 1990
Episode 64 of Season 1 premiered on April 23, 1990
September 3, 1990
Episode 65 of Season 1 premiered on September 3, 1990
January 21, 1991
Episode 66 of Season 1 premiered on January 21, 1991
September 9, 1991
Episode 67 of Season 1 premiered on September 9, 1991
June 21, 1992
Episode 68 of Season 1 premiered on June 21, 1992
March 7, 1993
Episode 69 of Season 1 premiered on March 7, 1993
November 2, 1993
Episode 70 of Season 1 premiered on November 2, 1993