January 28, 1990
Episode 1 of Season 4 premiered on January 28, 1990
March 11, 1990
Episode 2 of Season 4 premiered on March 11, 1990
March 18, 1990
Episode 3 of Season 4 premiered on March 18, 1990
June 3, 1990
Episode 4 of Season 4 premiered on June 3, 1990
October 7, 1990
Episode 5 of Season 4 premiered on October 7, 1990
October 14, 1990
Episode 6 of Season 4 premiered on October 14, 1990
November 11, 1990
Episode 7 of Season 4 premiered on November 11, 1990
December 2, 1990
Episode 8 of Season 4 premiered on December 2, 1990
December 9, 1990
Episode 9 of Season 4 premiered on December 9, 1990