September 4, 1980
Episode 1 of Season 4 premiered on September 4, 1980
September 5, 1980
Episode 2 of Season 4 premiered on September 5, 1980
September 8, 1980
Episode 3 of Season 4 premiered on September 8, 1980
September 9, 1980
Episode 4 of Season 4 premiered on September 9, 1980
September 10, 1980
Episode 5 of Season 4 premiered on September 10, 1980
October 11, 1980
Episode 6 of Season 4 premiered on October 11, 1980
October 12, 1980
Episode 7 of Season 4 premiered on October 12, 1980