It was a late 80s TV show that had a Brady's episode. Julia Louis-Dreyfus and Courtney Thorne-Smith appear at 16:55 as cheerleaders. Wearing White Keds knockoffs. They look really hot!!
http://www.youtube.com/watch?v=gapSLY5Fxbo
http://www.youtube.com/watch?v=gapSLY5Fxbo