January 19, 1974
Episode 1 of Season 4 premiered on January 19, 1974
January 26, 1974
Episode 2 of Season 4 premiered on January 26, 1974
February 2, 1974
Episode 3 of Season 4 premiered on February 2, 1974
February 9, 1974
Episode 4 of Season 4 premiered on February 9, 1974
February 16, 1974
Episode 5 of Season 4 premiered on February 16, 1974
February 23, 1974
Episode 6 of Season 4 premiered on February 23, 1974
March 2, 1974
Episode 7 of Season 4 premiered on March 2, 1974
March 9, 1974
Episode 8 of Season 4 premiered on March 9, 1974
May 11, 1974
Episode 9 of Season 4 premiered on May 11, 1974
May 18, 1974
Episode 10 of Season 4 premiered on May 18, 1974
May 25, 1974
Episode 11 of Season 4 premiered on May 25, 1974
June 1, 1974
Episode 12 of Season 4 premiered on June 1, 1974
June 8, 1974
Episode 13 of Season 4 premiered on June 8, 1974
June 15, 1974
Episode 14 of Season 4 premiered on June 15, 1974
June 29, 1974
Episode 15 of Season 4 premiered on June 29, 1974
July 6, 1974
Episode 16 of Season 4 premiered on July 6, 1974
September 14, 1974
Episode 17 of Season 4 premiered on September 14, 1974
September 21, 1974
Episode 18 of Season 4 premiered on September 21, 1974
September 28, 1974
Episode 19 of Season 4 premiered on September 28, 1974
October 5, 1974
Episode 20 of Season 4 premiered on October 5, 1974
October 12, 1974
Episode 21 of Season 4 premiered on October 12, 1974
October 19, 1974
Episode 22 of Season 4 premiered on October 19, 1974
October 26, 1974
Episode 23 of Season 4 premiered on October 26, 1974
November 2, 1974
Episode 24 of Season 4 premiered on November 2, 1974
November 16, 1974
Episode 25 of Season 4 premiered on November 16, 1974
November 23, 1974
Episode 26 of Season 4 premiered on November 23, 1974
December 21, 1974
Episode 27 of Season 4 premiered on December 21, 1974
December 28, 1974
Episode 28 of Season 4 premiered on December 28, 1974