February 22, 1990
Episode 1 of Season 12 premiered on February 22, 1990
February 25, 1990
Episode 2 of Season 12 premiered on February 25, 1990
March 13, 1990
Episode 3 of Season 12 premiered on March 13, 1990
November 22, 1990
Episode 4 of Season 12 premiered on November 22, 1990