Sheldon refers to a TV commercial involving an egg and a frying pan. This was part of an '80s anti-drug campaign that showed an egg, with a voiceover saying, "This is your brain." Then, the commercial showed a shelled egg frying in a pan, with a voiceover saying, "This is your brain on drugs."
In the sporting goods store, Georgie plays the song, "Nothin' But A Good Time", by Poison (from their 1988 album, "Open Up And Say Ahh").
Ryan Stiles appears as Sheldon's dentist, Dr Bowers. He also played a clown named Bobo on Georgie's favorite show, "Who's the Boss" (Party Politics (1991) ).