Weakest Link (also known as The Weakest Link) is a television game show which first appeared in the United Kingdom on BBC Two on 14 August 2000 and originally ended on 31 March 2012 when its host Anne Robinson completed her contract. The original British version of the show is still aired around the world on BBC Entertainment and domestically on Challenge. The game begins with a team of eight or nine contestants who take turns answering general knowledge questions within a time limit to create chains of correct answers in a row. At the end of each round, the players vote one contestant, "The Weakest Link", out of the game. Once two players are left, they play in a head-to-head contest, with five questions asked to each contestant in turn, to determine the winner.

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The format has been licensed across the world, with many countries producing their own series of the programme and is the second most popular international franchise, behind only the Who Wants to Be a Millionaire? franchise, which also originated in the UK.^[1]

The programme sees a group of contestants ranging from five to nine players who will need to work as a team to try to win as much as possible of a maximum cash jackpot by correctly answering general-knowledge questions in a series of rapid-fire rounds.

Each round features a money chain of anywhere from five to nine increasing cash values, with a maximum cash target that the team must attempt to reach within a time limit. Questions are asked of the team members sequentially. In the first round, play will typically start with the first player alphabetically or by a random-draw before the game starts. The team can most quickly achieve the target by stringing together a chain of consecutive correct answers, the minimum number of which depends on the number of "links" in the money chain, usually but not always the same as the number of contestants at the start of the show. A correct answer increases the value of the succeeding question, while an incorrect answer breaks the chain, losing all money accumulated in that chain. A contestant can secure the accumulated money in the chain by saying "Bank" before their question is asked, some versions require the contestant to wait to bank until their name is called; doing so however resets the chain to zero and the team must rebuild again. The round ends when the team has either run out of time or banked the target, in which case the round ends prematurely. The target amount is the maximum amount available in the round. If the team banks a total exceeding this amount, it is rounded down to the maximum amount. Only the money that has been banked is taken forward in the game, forming the total prize money available at the end. In the event the host is in the middle of a question when time runs out, the question is abandoned; however, if the question is completely asked before time runs out, the correct answer is announced, whether or not the contestant answered it correctly.

Each round ends with the team voting off one person from the game. Before the votes are revealed, a voice-over announcer reveals who statistically is the Strongest Link and Weakest Link, determined by how many questions were answered correctly and incorrectly, the amount of money banked and lost, and the total monetary value of the questions asked. The votes are then revealed, followed by inquiry by the host for the reasoning behind the vote, along with berating of the contestants. The person with the most votes is named the Weakest Link regardless of the statistics, is eliminated from the game, and wins nothing. In the event of a tie, the Strongest Link is immediately deemed immune from the vote and must break the tie.

This process repeats, with each successive round beginning with the Strongest Link from the last round, or the second-Strongest Link, if the Strongest Link was voted off, and the time limit available to them decreasing usually by 10 or 15 seconds. Once there are two players remaining, they play one final round, where the money banked is multiplied by a certain amount. In some versions, however, the game has gone straight to the head-to-head finale after the final elimination.

The final two contestants then compete in a head-to-head round to determine the winner, with the Strongest Link from the last round determining who begins the round. The contestants are alternately asked a series of five questions each. The player who correctly answers the most wins the money accumulated in the game. If there is a draw, the game continues to sudden death, where the first to answer a question correctly over their opponent's incorrect answer wins. The loser, like all other contestants prior, goes home with nothing.

Compared with the original format, the others have some changes, making them not the same as the original.

The format is currently distributed by BBC Studios, the commercial arm of the BBC, following their merger with BBC Worldwide and also is produced by different production companies. Australia was the 1st country to adapt the format; not all the international versions share the same title as UK.

As with the original British version, all of the hosts wear black clothing (or sometimes dark colours with black). Most versions also have disciplinarian female hosts, again similar to the British original—with exceptions being Fausto Silva (Brazil), Tasos Tryfonos (Cyprus and Greece), Julien Courbet (France), Riku Nieminen (Finland), Nikolai Fomenko (Russia), Eamon Dunphy (Ireland), Edu Manzano, Allan K. (both Philippines), Shirō Itō (Japan), Pedro Granger (Portugal), Enrico Papi (Italy), Tseng Yang Qing (Taiwan), Baybars Altuntaş (Turkey), George Gray (United States) and Romesh Ranganathan (United Kingdom). Gray, Courbet and Ranganathan are comedians, and those versions were designed to play off comedy.

In Croatia, in May 2010, the quiz reached its 1,008th episode, and with the British original is the only version to have reached as many episodes.

Legend:

  Currently airing     No longer airing     Unsold pilot     Future version