Once Johnny Carson I remember is when Burt Reynolds showed up with half a mustache. He had shaved off the mustache on the right side, but not the left. He kept switching the profile shot from left to right and back and asked the audience which they preferred.

>I remember watching the Michael Douglas show when I was young(er). :o) I also saw the New Years Eve Tonight Show with Johnny Carson when Robert Blake showed up drunk as a skunk. Now I've really dated myself... :o)