I turn on the TV here in Amsterdam, and they're showing this game show. The host asks trivia questions, and whoever gets it right gets to play Tetris for a few seconds. I'm not sure what else is going on, or how they decide for how long they play, or how someone will eventually win, but it's utterly fascinating. The answer to one question was "Salma Hayek". I guess the trick, too, is that you may want to set up a Tetris and clear four rows, but your opponent may get the right answer first and steal it from you.
Oh wait, someone just won. Man, this would be easier if I spoke Dutch.