April 26, 1980 • 52m
Episode 1 of Season 4 premiered on April 26, 1980
May 3, 1980 • 52m
Episode 2 of Season 4 premiered on May 3, 1980
May 10, 1980 • 53m
Episode 3 of Season 4 premiered on May 10, 1980
May 17, 1980 • 53m
Episode 4 of Season 4 premiered on May 17, 1980