April 16, 1977
Episode 1 of Season 13 premiered on April 16, 1977
April 23, 1977
Episode 2 of Season 13 premiered on April 23, 1977
April 30, 1977
Episode 3 of Season 13 premiered on April 30, 1977
May 7, 1977
Episode 4 of Season 13 premiered on May 7, 1977
May 14, 1977
Episode 5 of Season 13 premiered on May 14, 1977
May 21, 1977
Episode 6 of Season 13 premiered on May 21, 1977
June 1, 1977
Episode 7 of Season 13 premiered on June 1, 1977
June 15, 1977
Episode 8 of Season 13 premiered on June 15, 1977
June 29, 1977
Episode 9 of Season 13 premiered on June 29, 1977
July 13, 1977
Episode 10 of Season 13 premiered on July 13, 1977
July 27, 1977
Episode 11 of Season 13 premiered on July 27, 1977
August 10, 1977
Episode 12 of Season 13 premiered on August 10, 1977
August 24, 1977
Episode 13 of Season 13 premiered on August 24, 1977
September 7, 1977
Episode 14 of Season 13 premiered on September 7, 1977