The Bamberger's ad saying the After THanksgiving sale on "Friday and Saturday" starting "tomorrow" indicates this episode aired on 11/22/1984 and Colleen's first five episodes on WMAR aired on 11/20-11/23 and 11/26/1984.
Most of the nation would see this episode on December 6 or December 20, 1984 and this episode's rerun was either August 22 or September 5, 1985 with new promotional considerations.