The scam part was the program seemed to be "scanning" and playing back bits from Letterman, when in reality they were just broadcasting funny stuff live as the

The scam part was the program seemed to be "scanning" and playing back bits from Letterman, when in reality they were just broadcasting funny stuff live as the joke/scam. What's crazy is that in a few years or even a year from now, it might be conceivable to have a program that you talk to, like you're talking to Penn and Teller, but then have it respond with Jokes that they would say - and video that matches. I guess the only part of that we won't be able to replicate, for a while, is Penn and Teller walking into your room and shaking your hand.