April 19, 1977 • 45m
Episode 1 of Season 4 premiered on April 19, 1977
May 10, 1977 • 45m
Episode 2 of Season 4 premiered on May 10, 1977
May 31, 1977 • 45m
Episode 3 of Season 4 premiered on May 31, 1977
June 28, 1977 • 45m
Episode 4 of Season 4 premiered on June 28, 1977
July 19, 1977 • 45m
Episode 5 of Season 4 premiered on July 19, 1977
August 9, 1977 • 45m
Episode 6 of Season 4 premiered on August 9, 1977