What happens when you put two complete strangers - sans clothes - in some of the most extreme environments on Earth? Each male-female duo is left with no food, no water, no clothes, and only one survival item each as they attempt to survive on their own.

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.

Human cannonballs! Human pinballs! Crashes, smashes and mud splashes! Twenty-four thrill-seekers will compete in the world's largest extreme obstacle course designed to provide the most spills, face plants and wipeouts ever seen on television.

Hardcore survivalists are put by themselves in the Vancouver Island wilderness, without camera crews, teams, or producers – on a single mission to stay alive for as long as possible.

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.

A group of the best survival experts in the world take on an un-survivable situation: 40 days. 40 nights. No food, water or clothes. To survive they'll need to master the environment, pushing far beyond the breaking point. Will even one be able to finish?

Two people with drastically different backgrounds and survival strategies take on some of the planet's most unforgiving terrain to demonstrate how the right skills and creative thinking can keep you alive in the most dangerous situations.

Players from all walks of life will compete to win up to £50,000. All living in one modern block but separately in individual apartments, the players will never come face-to.face, and can only interact with one another through an specially-designed app called The Circle.

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!"

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.

In the extreme Alaskan wild, 16 survivalists compete for a chance to win a massive cash prize — but these lone wolves must be part of a team to win.

Tough and tenacious people are marooned on a tropical island with little more than the clothes on their backs and the drive to be the sole survivor.

The famed survivalist takes A-list celebrities on journeys into the wildest locations around the world, forcing the stars to push their bodies and minds to the limit to successfully complete the adventure of a lifetime.

I gathered 1,000 people to fight for $5,000,000, the LARGEST cash prize in TV history! We're also giving away a private island, Lamborghinis, and millions more in cash throughout the competition! Go watch to see the greatest show ever made!

A talented cast of aspiring makeup artists live and work together as they attempt to prove their potential to industry professionals from a multitude of worlds from fashion to film. With regular eliminations, the challenges not only test their skills under pressure but also give them the opportunity to unleash their creative vision with jaw-dropping results.

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.

Couples travel to a tropical paradise where they are forced to decide if they're ready to commit to one another for the rest of their lives. A reboot of the 2001 reality series.

The Great Food Truck Race is a reality television series, that originally aired on August 15, 2010, on Food Network, with Tyler Florence as the host. It features competing food trucks. The fourth season premiered on August 18, 2013.

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.

This game show sees contestants solve word puzzles, similar to those used in Hangman, to win cash and prizes determined by spinning a giant carnival wheel.