Volunteers are given just four weeks to master a new skill and convince a panel of experts that they're the real deal, with the help of a handful of mentors.
The Challenge
The World's Best
The Greatest Dancer
The Great Sport Relief Bake Off
Nailed It! Mexico
X Factor Brasil
Band Bazi
Mullvaden
Who Wants to Be a Superhero?
America's Next Top Model
The Bachelor
Halloween Wars
Totally Doctor Who
Le grand saut
Masterchef Italy
Super Human Challenge
The Biggest Loser
Slag Wars: The Next Destroyer
The Great Big Tiny Design Challenge