A couple I can think of is any possible handheld footage of Hogan/Big Boss Man vs. Andre/Haku just before WrestleMania VI, and Ultimate Warrior/Kerry Von Erich vs. Mr. Perfect/Rick Rude leading up to that year's SummerSlam which I think might have occurred at a TV taping. In 1992 there was a match with Hogan and Savage against Jake Roberts and the Berzerker that happened too, that I think was at a TV taping as well.