Operación triunfo (2001)

Celebrities compete in a singing competition with one major twist: each singer is shrouded from head to toe in an elaborate costume, complete with full face mask to conceal his or her identity. One singer will be eliminated each week, ultimately revealing his or her true identity.

In this reality competition show inspired by "Squid Game," 456 players put their skills to the ultimate test for a life-changing $4.56 million prize.

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.

This refresh of the breakthrough series is hosted by Ludacris and custom-created for a new generation. Filled with new stunts inspired by urban legends, popular scary movies and viral videos from today’s cultural zeitgeist, contestants will confront their fears, be pushed beyond their comfort zones and take action against some of their biggest stressors.

Dancers selected in open auditions across America take part in a rigorous competition designed to best display their talents, training and personalities to a panel of judges and viewers as they strive to win votes and avoid elimination.

Each episode features two A-list celebrities like you've never seen them before - syncing their hearts out in hysterically epic performances. Hosted by LL Cool J with colorful commentary by social media maven and supermodel co-host, Chrissy Teigen. The mic is off, the battle is on!

Two talented chefs go head-to-head for the chance to Beat Bobby Flay. To get to Bobby the chefs must first face off against each other, creating a spectacular dish with a secret ingredient of Bobby's choice. Judges Alex Guarnaschelli and Jeff Mauro know Bobby's strengths and his weaknesses. Their goal: Pick the chef who has the skills to take down Bobby Flay in his own arena. The winning chef gets to challenge Bobby with his or her surprise signature dish. If Bobby goes down, the winner can tell the world, "I beat Bobby Flay!"

Quiz in which contestants try to score as few points as possible by plumbing the depths of their general knowledge to come up with the answers no-one else can think of.

The competition sees celebrities perform choreographed dance routines which are judged by a panel of renowned ballroom experts and voted on by viewers. Enjoy sizzling salsas, sambas and spray-tans as they vie for the coveted Mirrorball Trophy.

Each week, 20 contestants compete in a series of challenges in an attempt to win £10,000. These challenges are based in large pools of water or mud and generally involve large assault courses that participants must cross.