Don't forget the Lone Gunmen TV show that was on Fox. Weren't they playing D&D for money?
Also in Stargate SG-1, when they were searching a Ga' ould on Earth, Daniel was showing them a slide show for refrences. One of them was from WW's Vampire game. Well so I have been told.
There was also a Friday the 13th "The Series" episode where a group of college kids had an evil incense burner. When they played a D&D style game they were actually playing the game. There characters got hurt, they got hurt. One kid died. As I recall the Investigators had to play the game to beat them.
First Season of Charles in Charge, one of the kids he watched played D&D. Yes I used to watch WAAAYYYY to much TV.