Race to the Center of the Earth

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.

Already talented and famous KPOP stars are recombined to form the ultimate new girl group like puzzle pieces. Each competition is expected to bring fresh musical resonance and lively performances.

The Biggest Loser features obese people competing to win a cash prize by losing the highest percentage of weight relative to their initial weight.

A first-of-its-kind global talent competition featuring acts from every genre imaginable, from every corner of the planet. They not only have to impress American judges, but will also need to break through the "wall of the world," featuring 50 of the world's most accomplished experts from every field of entertainment.

A group of "Beauties" and a group of "Geeks" are paired up to compete as couples for a shared $250,000 and other prizes. Each beauty lives together in a room with her geek during the course of the competition. There are challenges shown each episode, one testing the beauties on a primarily academic subject, and another that has the geeks competing in a more popular/social realm. The winners of the challenges select two teams to compete against each other in a pure "quiz show" type question and answer session: the team with fewer correct answers gets eliminated.

Dance talent show which sees dancers of any age and dance style compete to win £50,000 and a chance to perform on Strictly Come Dancing.

Well-known faces don their aprons in this charity special. Who has got what it takes to go all the way and compete for the Great Sport Relief Bake Off crown?

The fun, fondant and hilarious cake fails head to Mexico, where very amateur bakers compete to re-create elaborate sweet treats for a cash prize.

Teams of amateur robot fighting enthusiasts battle it out over a series of rounds in a huge purpose-built arena aiming to become the Robot Wars Champion.

A competition reality series that challenges a lucky few to create their very own superhero and reward the winner with having their character immortalized in a new comic book.

Phuwin, Namtan, Janhae, Mark and Neo are each given 100,000 baht that they'll have to keep from being reduced in each challenge.

X Factor Brasil

Band Bazi is the biggest talent competition for Iranian music bands in the pop and pop fusion genre, which is produced and broadcast by Filmnet. A combination of judges and People's votes determines the fate of the groups participating in this competition.

Stars from all over Thailand square off in an epic sporting competition. The competition will be fierce.

A food competition series that travels across the country and tackles the food world from a wholly different direction: the restaurants. Sixteen of the nation's best restaurants, representing all variety of cuisines, will compete against each other on their own turf to find out who truly provides the best all-around, top-to-bottom restaurant experience and deserves to be crowned as the Best New Restaurant.

Former college quarterbacks try to learn the knuckleball while competing for a spring-training spot with the Arizona Diamondbacks.

Soldiers from around the world compete in combat challenges.

The Games is a British reality television series that ran on Channel 4 for four series, in which 10 celebrities competed against each other, by doing Olympic-style events, such as weight lifting, gymnastics and diving. At the end of the series, the contestants with the most points from each round were awarded either a gold, silver or bronze medal. The show was mainly filmed in Sheffield, at the Sheffield Arena, Don Valley Stadium and Ponds Forge. In later series, the English Institute of Sport – Sheffield, iceSheffield and in series 4 the National Watersports Centre in Nottingham were used for the first time. The Games was presented by Jamie Theakston for the entirety of its run, with track-side reports from Jayne Middlemiss in series 1–3 and Kirsty Gallacher in series 4. The Games also had an after-show called The Games: Live at Trackside, aired on Channel 4's sister channel E4. The first series was presented by Dougie Anderson, whilst the second was hosted by Gamezville presenters Darren Malcolm and Jamie Atiko. Justin Lee Collins and Caroline Flack took over as presenters for the third and fourth series. For the final series an extra one-hour show was added on E4 in the afternoon called The Games: Live at the Heats, and the evening show changed title to become The Games: Inside Track.

Celebrities perform famous dance routines in front of a panel of judges to raise money for the Sport Relief appeal, with viewers voting for their favourites.

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