April 22, 1977
Episode 1 of Season 12 premiered on April 22, 1977
April 29, 1977
Episode 2 of Season 12 premiered on April 29, 1977
May 6, 1977
Episode 3 of Season 12 premiered on May 6, 1977
May 13, 1977
Episode 4 of Season 12 premiered on May 13, 1977
May 20, 1977
Episode 5 of Season 12 premiered on May 20, 1977
May 27, 1977
Episode 6 of Season 12 premiered on May 27, 1977
June 3, 1977
Episode 7 of Season 12 premiered on June 3, 1977
June 10, 1977
Episode 8 of Season 12 premiered on June 10, 1977
June 17, 1977
Episode 9 of Season 12 premiered on June 17, 1977
June 24, 1977
Episode 10 of Season 12 premiered on June 24, 1977
July 1, 1977
Episode 11 of Season 12 premiered on July 1, 1977
July 8, 1977
Episode 12 of Season 12 premiered on July 8, 1977
July 15, 1977
Episode 13 of Season 12 premiered on July 15, 1977
July 22, 1977
Episode 14 of Season 12 premiered on July 22, 1977
July 29, 1977
Episode 15 of Season 12 premiered on July 29, 1977
August 5, 1977
Episode 16 of Season 12 premiered on August 5, 1977