All Against All

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.

"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. 

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.

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!"

Eight pairs of Brick heads are pitted against each other in a quest to impress with their creativity, design and flair, driven by their unparalleled passion for the possibilities that will start with a single LEGO brick.

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!

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.

The superstars of World Wrestling Entertainment's "SmackDown" brand collide each and every Friday on WWE Friday Night SmackDown.

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.

Deep in the Alaskan wilderness lives a newly discovered family who was born and raised wild. Billy Brown, his wife Ami and their seven grown children – 5 boys and 2 girls – are so far removed from civilization that they often go six to nine months of the year without seeing an outsider. They’ve developed their own accent and dialect, refer to themselves as a "wolf pack," and at night, all nine sleep together in a one-room cabin. Simply put, they are unlike any other family in America. Recently, according to the Browns, the cabin where they lived for years was seized and burned to the ground for being in the wrong location on public land.

Wizarding World fans put their Harry Potter knowledge to the test for the ultimate honor to be named House Cup champion.