January 2, 1978
Episode 1 of Season 4 premiered on January 2, 1978
January 30, 1978
Episode 2 of Season 4 premiered on January 30, 1978
March 6, 1978
Episode 3 of Season 4 premiered on March 6, 1978
April 10, 1978
Episode 4 of Season 4 premiered on April 10, 1978
June 19, 1978
Episode 5 of Season 4 premiered on June 19, 1978
September 18, 1978
Episode 6 of Season 4 premiered on September 18, 1978
October 9, 1978
Episode 7 of Season 4 premiered on October 9, 1978
November 6, 1978
Episode 8 of Season 4 premiered on November 6, 1978
December 4, 1978
Episode 9 of Season 4 premiered on December 4, 1978