TravelZoo is once again offering discounted tickets to Penn and Teller at the Rio. With the discount, mezzanine level seats are $49.50 plus a $6.50 service charge. The regular price is $82.50 plus a $9.50 service charge. They put on a great show. It is on my Top 5 Shows list. You can see my review here.
Here is the TravelZoo link. The link on their site will take you to Ticketmaster with the discount applied. If you would prefer to book over the phone you can call 888-746-7784, press 1 and mention offer code PTZOO.