This past Christmas (2002), my family and I happened to go to Magic Kingdom the day they were filming the Christmas Parade (yeah, a few weeks in advance).
It was crazy in there, with camera crews and crowds everywhere. We decided to just take our time and hang out on Main Street.
We ended up jumping in a little group where they were going to film a segment. And I couldn't believe my luck - Wayne Brady of "Who's Line Is It Anyway?" fame was leading the segment! I had seen his show when it came to Atlanta, and I was so happy to get a picture and autograph, AND I saw myself on TV on Christmas Day!! Very cool.
Just a comment - my dad always takes notice when there are CMs in the parks with the green and red plaid vests on. More often than not, they seem to be escorting someone important, if not famous. Anyone else notice that, or know what those guides are for?