Continuity: During the Super Bowl 2000 episode, "Slaw" says he has to go to a engagement with his Dad and can't watch the Super Bowl. Later in the episode, he's watching it with Nick and company.
Continuity: If you look closely at Nick's face mask when he is Bart Starr, you'll see it's a two-bar face mask. When the camera goes to footage of the game, the real Bart Starr is wearing a one-bar face mask.