February 15, 1969
Episode 1 of Season 4 premiered on February 15, 1969
March 15, 1969
Episode 2 of Season 4 premiered on March 15, 1969
April 19, 1969
Episode 3 of Season 4 premiered on April 19, 1969
May 17, 1969
Episode 4 of Season 4 premiered on May 17, 1969
June 21, 1969
Episode 5 of Season 4 premiered on June 21, 1969
July 5, 1969
Episode 6 of Season 4 premiered on July 5, 1969
September 20, 1969
Episode 7 of Season 4 premiered on September 20, 1969
October 11, 1969
Episode 8 of Season 4 premiered on October 11, 1969
November 22, 1969
Episode 9 of Season 4 premiered on November 22, 1969
December 13, 1969
Episode 10 of Season 4 premiered on December 13, 1969