January 11, 1989
Episode 1 of Season 4 premiered on January 11, 1989
February 17, 1989
Episode 2 of Season 4 premiered on February 17, 1989
March 17, 1989
Episode 3 of Season 4 premiered on March 17, 1989
April 21, 1989
Episode 4 of Season 4 premiered on April 21, 1989
May 19, 1989
Episode 5 of Season 4 premiered on May 19, 1989
June 16, 1989
Episode 6 of Season 4 premiered on June 16, 1989
October 20, 1989
Episode 7 of Season 4 premiered on October 20, 1989
November 17, 1989
Episode 8 of Season 4 premiered on November 17, 1989
December 15, 1989
Episode 9 of Season 4 premiered on December 15, 1989