The Challenge: Untold History

Each Challenge pits numerous cast members from past seasons of reality shows against each other, dividing them into two separate teams according to different criteria, such as gender, which show they first appeared on, whether or not they're veterans or rookies on the show, etc. The two teams compete in numerous missions in order to win prizes and advance in the overall game.

Twelve celebrities are abandoned in the Australian jungle. In order to earn food, they must perform Bushtucker Trials which challenge them physically and mentally.

This reality competition sees teams embark on a trek around the world to amazing destinations where they must compete in a series of challenges, some mental and some physical. Only when the tasks are completed will they learn of their next location. Teams who are the farthest behind will gradually be eliminated as the contest progresses, with the first team to arrive at the final destination winning the race and the $1 million prize.

British version of the reality competitions series that sees young entrepreneurs compete in several business tasks, attempting to survive the weekly firings in order to become the business partner of one of the most successful businessmen.

Aspiring models compete for a chance to break into the business with a panel of judges critiquing their progress throughout the competition.