The Surreal Life
2003
Ten former houseguests from "The Surreal Life" reconvene to compete for a $100,000 cash prize and the title of "Most Famous 'Surreal Life' All-Star." While competing, they live in a Las Vegas mansion, but the bottom three from each challenge are forced to play a game called "Back to Reality"; the top player is allowed to return to the mansion while the bottom two live in a wing of the house with shabby lodgings and crappy food. Wikipedia