UPDATE!
I got an audition, in Boston, yesterday. Had to cancel classes to attend, but I think it was worth it. I was dreading that it would just be humiliating, but actually it turned out to be a lot of fun.
We went in batches of about 25 people (they were apparently doing this Thursday through Saturday) in 3-hour blocks. Line up in the hallway to fill out paperwork and have your polaroid taken. Then we all go into a hotel conference room, and get more information about being on the show. After that, a second quiz, answering on paper this time, 50 clues, not really any harder than the online quiz. Then we took a break. After that, they put us in groups of three with buzzers and all to play through a mock game. No real scoring, no daily doubles or anything - it's really an audition process to see if we look like we're having fun, if we move quickly and keep the game moving, if we speak up rather than mumbling. At the end of the mock game, a little interview, asking us about our jobs, hobbies, what we do for fun, what we would do if we won a big pile of money (go GAS-crazy, of course...), that kind of thing.
I have a good feeling about it. It's long odds - apparently 100,000 take the online test, 2000-3000 score well enough to get to the audition phase, but only 400-500 actually get a slot on the show. So I figure I've got about 20% odds of getting on at this stage. But hopefully talking about playing bass and wearing chainmail made me stand out a little more than all the people who talked about their cats and how they like reading books and how they'd use the money to pay off loans and travel. There's an 18-month window within which they might call, so it may be a long time before I know...
Suddenly the almanac seems like a much more interesting read...
Thanks for all the good thoughts out there! I'll keep you posted if I ever actually get on!