So one gem I found recently was that a lot of ex wrestlers made appearances on Regis and Kathy Lee. Giant Gonzales, Steve Austin, Yokozuna, and, awesomest of all, the Undertaker. This was from back when WWF actors never broke character when in public, and so what you get is a ridiculous show where the Undertaker being creepy and badass and Regis being Regis collide. The result? Pure awesome.
It starts a little slow, but things get really good at the 2:36 mark, when Regis tries to get the Taker to look out from under his hat. And it only gets better from there, as Regis then throws Hulk Hogan dolls at Taker. Great stuff.
Also, there was a second Undertaker appearance where Regis ended up in a casket. Check that out here.