We attended the taping to Penn and Teller's Fool Us and had a lot of fun. The show consists of magic acts from amateur magicians trying to fool Penn and Teller. They also include a magic trick that they themselves do to try and fool a celebrity.
The show is very interactive and you are in for a great night full of breathtaking moments. The host, Alyson Hannigan, is great also. I've been a fan of hers since watching Buffy the Vampire Slayer and How I Met Your Mother. Her facial expressions during the magic acts is hilarious. She also engages with the audience which is really cute.
I would love to see the show they have here at the Rio and hope to soon.