Creepy 80's Sitcoms

I'm a big fan of the 80's sitcom. Life on TV was simpler back then, and it genuinely had bigger laughs. Occasionally, the writers would sneak in episodes that were challenging or pushed the envelope. Three's Company always pushed the homosexual front (in a round-a-bout way). The Cosby Show was also innovative on so many fronts: racism, sexism, dealing with dementia are all episodes I can think of. I also remember seeing a cast of many races in supportive roles.

Esquire had a list of some of the edgier moments from a few 80's sitcoms. I remember them all, including the uber-creepy Diff'rent Strokes episode.

A glaring omission is the Facts of Life episode dealing with drugs (anyone want to take a hit from a jellybean holder?).