January 2, 1972
Episode 1 of Season 20 premiered on January 2, 1972
January 27, 1972
Episode 2 of Season 20 premiered on January 27, 1972
March 16, 1972
Episode 3 of Season 20 premiered on March 16, 1972
April 16, 1972
Episode 4 of Season 20 premiered on April 16, 1972
May 14, 1972
Episode 5 of Season 20 premiered on May 14, 1972
June 4, 1972
Episode 6 of Season 20 premiered on June 4, 1972
July 9, 1972
Episode 7 of Season 20 premiered on July 9, 1972
August 13, 1972
Episode 8 of Season 20 premiered on August 13, 1972
December 25, 1972
Episode 9 of Season 20 premiered on December 25, 1972