AVASTARS

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.

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.

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.

The strongest vocalists from across the United states compete in a blockbusters vocal competition, the winner becomes “The Voice.” The show's innovative format features four stages of competition: the blind auditions, the battle rounds, the knockouts and, finally, the live performance shows.

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!

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.

In the show, participants form teams to earn as many points as possible during games and challenges. Any contestant on the winning team at the end of the month stands a chance of winning €100,000, but there can only be one ultimate winner of this prize; ultimately, they must compete against one another. Participants on the worst-performing team at the end of the month risk being sent home empty-handed. Consequently, two contestants are eliminated each month, but two new faces join the group to replace them.

In this competition/elimination series, special effects make-up artists participate in elaborate challenges for a grand prize and the honor of being Hollywood's next great effects artist.

Britain's best amateur bakers compete in the iconic white tent - all united in their aim to prove their baking skills and impress judges Paul Hollywood and Prue Leith.

Guy Fieri sends four talented chefs running through the aisles in a high stakes, high skills, grocery store cooking competition. The chefs are hit by real-world challenges like finding workarounds when all the essential ingredients are suddenly "out-of-stock" or having to create a masterpiece when you can only cook with "5 items or less" or on a $10 budget. In the end, the food does the talking, as the last chef standing has the chance to make some serious dough!

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.

The next generation of UFC stars are produced in an intense elimination tournament that separates the contenders from the pretenders.

Performers compete for a multi-episode guest-starring role on season three of hit series Glee. Over the course of the competition, the winner will be determined from eliminations of twelve finalists and be awarded a role in a seven episode arc as part of the cast of Fox Network's musical drama series Glee.

American version of the culinary competition series that gives talented kids between the ages of 8 and 13 the chance to showcase their culinary abilities and passion for food through a series of delicious challenges. Celebrated food experts coach and encourage the promising hopefuls to cook like pros and teach them the tricks of the trade along the way.

American cooking show based on Fuji Television's Iron Chef, and is the second American adaptation of the series, following the failed Iron Chef USA. Like the original Japanese program, the program is a culinary game show. In each episode, a new challenger chef competes against one of the resident "Iron Chefs" in a one-hour cooking competition based on a secret ingredient or ingredients, and sometimes theme.

"Come on down!" The Price Is Right features a wide variety of games and contests with the same basic challenge: Guess the prices of everyday (or not-quite-everyday) retail items. 

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.

An American reality competition show in which chefs compete against each other in culinary challenges and are judged by a panel of professional chefs and other notables from the food and wine industry with one or more contestants eliminated in each episode.

Teams of LEGO enthusiasts go head-to-head, with infinite possibilities and an unlimited supply of LEGO bricks. Teams of two will compete against each other in ambitious brick-building challenges to be crowned the country's most talented amateur LEGO builders. Based on the hit British reality-competition series of the same name.

A high energy, fast paced cooking competition that challenges four up-and-coming chefs to turn a selection of everyday ingredients into an extraordinary three-course meal. After each course, a contestant gets “chopped” by our panel of esteemed culinary luminaries until the last man or woman left standing claims victory.

The MBC Plus X Genie Music Awards is a major music awards show that is held annually in South Korea and organized by MBC Plus and Genie

12 young construction professionals compete in a skills competition that will determine the best entrepreneur in Quebec.

Great American Road Trip is a reality television competition series that aired on NBC. It follows seven families as they go on a road trip and compete against each other at different landmarks in and around U.S. Route 66 in the United States. The series is hosted by comedian Reno Collier. The show premiered on July 7, 2009 as the lead-in to America's Got Talent. However, due to poor ratings, NBC moved the show to Monday nights, with the next episode coming less than a week later. In the second week, ratings declined about 10 percent, as seen in the chart below.

Aspiring rappers compete in battles, pen new tracks and deliver unforgettable performances to impress all-star judges for a chance to win $250,000.

Norske Talenter is a Norwegian talent show with the same format as Britain's Got Talent. 16-year old singer Erlend Bratland won the first series and hip hop dance group Quick won the second series. Judges are music producer Jan Fredrik Karlsen, singer and actress Mia Gundersen and comedian/actor Thomas Giertsen. In 2007 Marte Stokstad and Sturla Berg-Johansen were hosts, and in 2008 Berg-Johansen joined Pia Lykke to be hosts. For a list of all acts that came through in the series watch List of Norske Talenter Acts.

The show's format consists of four to seven teams of two undertaking a coach tour principally of continental Europe. The tours have usually lasted 30 or 50 days, with passengers remaining on the tour only until they are ejected by their companions on one day, to be replaced by a new couple the following day. The travellers are accompanied by tour guide Brendan Sheerin, who appears in every episode.

In every high-style-meets-high-stakes episode, four competitors face off in dramatically themed challenges with one designer eliminated each round.

Host Lily Du gathers together four guests to tell secrets, guess who they belong to, and enjoy a few drinks.

There Goes the Neighborhood is an American prime-time reality television program on CBS. The show premiered on August 9, 2009, and features eight suburban families shut out from the outside world with no television, internet, phones, or contact with anybody outside of their neighborhood. The families will compete in challenges against each other. Each week, one family will be banished from the neighborhood, thereby eliminating the family from contention for the show's $250,000 prize fund. The show's executive producers are Jay Bienstock and Mike Fleiss. The show's presenter is Matt Rogers, a finalist on American Idol 3.

Passionate amateur artists undertake an intensive, six-week, artistic boot camp in a bid to perfect their skills and be crowned the overall champion.

Four teams of adventurers embark on a quest to sprint around the world on a challenging course in the hopes of beating the others to a buoy in the middle of the ocean on which is stashed a $1 million prize.

Superstars is an all-around sports competition that pits elite athletes from different sports against one another in a series of athletic events resembling a decathlon. Points are awarded for the position in which the competitor places in each event. The competitor with the most points at the end of all ten events is declared the champion.On the original ABC version, an athlete could compete in up to seven events, but no athlete was permitted to compete in the sport of his or her profession.

Extreme adventure reality competition with Bear Grylls, who challenges teams of two in the wild.

It's the "Nailed It!" holiday special you've been waiting for, with missing ingredients, impossible asks and desserts that look delightfully sad.