South Park episode The Tooth Fairy Tats 2000 a.k.a. The Tooth Fairy's Tats
South Park - Episode 0402 - Original Air Date:05th April 2000.
This South Park episode was write by Trey Parker, Matt Stone and Nancy M. Pimental
The Tooth Fairy has visited Cartman, leaving him $2. He rushes to the bus stop to share his news with the others. He then unveils his latest plan in how to make money. So, our little entrepreneurs build a thriving business by appropriating teeth from the less fortunate, and Cartman is sitting pretty as the mastermind behind the entire operation. When the boys attempt to expand their racket, they come face to face with Denver's Mob Boss in the black-market tooth trade. Meanwhile, when Kyle learns that the Tooth Fairy is just a myth created by everyone's parents, he begins to question his own existence.
When Kyle says "This book says I don't exist unless I think I do."; Kyle is reading Descartes Meditations on First Philosophy. Descartes casts all his beliefs into doubt, but in the second meditation he finds one belief he cannot doubt: I think, therefore I am."
The games console Cartman wanted was the ill-fated Sega Dreamcast.