Saw Penn and Teller show on a Saturday night. The theater wasn't sold out, but it was pretty full. They had Mike Jones, a jazz piano player, entertaining the crowd before the show started. You could also go up on stage and sign an envelope and exam a box to be used later in the show. I've seen most of the tricks they did in the show, but they did throw in some new ones. They do a great job of getting the audience involved in the show. For those audience members who were lucky enough to be part of the show, they were allowed to keep the props used in the trick. You can tell that the entire team has been doing this for 20 years as the show moved effortlessly and didn't seem anywhere near 90 minutes. One thing I must mention is that after the show both Penn and Teller are available in the lobby to sign autographs, take photos, etc. They wait until everyone has had a chance and they don't charge extra for this like some performers do.