I don't think those ARE edits. I think that's just how commercials were done back in those days. It's the same girls that are laughing later - they were just taking notice.
I keep expecting one of the girls heads to turn around and it'll be all possessed Linda-Blair-esque instead of just plain old scary. This so deserves a video remix.
Goddamn it, those things can't be bought anywhere anymore. I want an entire army of them in my windows. They face the parking lot of the local graveyard.