March 6, 1971
Episode 1 of Season 1 premiered on March 6, 1971
March 13, 1971
Episode 2 of Season 1 premiered on March 13, 1971
March 20, 1971
Episode 3 of Season 1 premiered on March 20, 1971
March 27, 1971
Episode 4 of Season 1 premiered on March 27, 1971
April 3, 1971
Episode 5 of Season 1 premiered on April 3, 1971
April 10, 1971
Episode 6 of Season 1 premiered on April 10, 1971
April 17, 1971
Episode 7 of Season 1 premiered on April 17, 1971
April 24, 1971
Episode 8 of Season 1 premiered on April 24, 1971
May 1, 1971
Episode 9 of Season 1 premiered on May 1, 1971
May 8, 1971
Episode 10 of Season 1 premiered on May 8, 1971
May 15, 1971
Episode 11 of Season 1 premiered on May 15, 1971
May 22, 1971
Episode 12 of Season 1 premiered on May 22, 1971
May 29, 1971
Episode 13 of Season 1 premiered on May 29, 1971
June 6, 1971
Episode 14 of Season 1 premiered on June 6, 1971
June 13, 1971
Episode 15 of Season 1 premiered on June 13, 1971
July 20, 1971
Episode 16 of Season 1 premiered on July 20, 1971
July 27, 1971
Episode 17 of Season 1 premiered on July 27, 1971
August 3, 1971
Episode 18 of Season 1 premiered on August 3, 1971
August 10, 1971
Episode 19 of Season 1 premiered on August 10, 1971
August 17, 1971
Episode 20 of Season 1 premiered on August 17, 1971
August 24, 1971
Episode 21 of Season 1 premiered on August 24, 1971
August 31, 1971
Episode 22 of Season 1 premiered on August 31, 1971
September 6, 1971
Episode 23 of Season 1 premiered on September 6, 1971
September 14, 1971
Episode 24 of Season 1 premiered on September 14, 1971
September 21, 1971
Episode 25 of Season 1 premiered on September 21, 1971
October 1, 1971
Episode 26 of Season 1 premiered on October 1, 1971
October 8, 1971
Episode 27 of Season 1 premiered on October 8, 1971
October 15, 1971
Episode 28 of Season 1 premiered on October 15, 1971
October 22, 1971
Episode 29 of Season 1 premiered on October 22, 1971
October 29, 1971
Episode 30 of Season 1 premiered on October 29, 1971
November 5, 1971
Episode 31 of Season 1 premiered on November 5, 1971
November 12, 1971
Episode 32 of Season 1 premiered on November 12, 1971
November 19, 1971
Episode 33 of Season 1 premiered on November 19, 1971
November 26, 1971
Episode 34 of Season 1 premiered on November 26, 1971
December 3, 1971
Episode 35 of Season 1 premiered on December 3, 1971
January 18, 1972
Episode 36 of Season 1 premiered on January 18, 1972
January 25, 1972
Episode 37 of Season 1 premiered on January 25, 1972
February 1, 1972
Episode 38 of Season 1 premiered on February 1, 1972
February 8, 1972
Episode 39 of Season 1 premiered on February 8, 1972
February 15, 1972
Episode 40 of Season 1 premiered on February 15, 1972
May 1, 1977
Episode 300 of Season 1 premiered on May 1, 1977
April 1, 1979
Episode 400 of Season 1 premiered on April 1, 1979
March 22, 1981
Episode 500 of Season 1 premiered on March 22, 1981
July 22, 1983
Episode 636 of Season 1 premiered on July 22, 1983
October 18, 1984
Episode 680 of Season 1 premiered on October 18, 1984
September 18, 1985
Episode 700 of Season 1 premiered on September 18, 1985
November 26, 1987
Episode 800 of Season 1 premiered on November 26, 1987
October 12, 1989
Episode 880 of Season 1 premiered on October 12, 1989