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Who Wants to Be a Millionaire? is an international television game show franchise of British origin, created by David Briggs, Mike Whitehill and Steven Knight. In its format, currently owned and licensed by Sony Pictures Television, contestants tackle a series of multiple-choice questions to win large cash prizes in a format that twists on many game show genre conventions – only one contestant plays at a time, similar to radio quizzes; contestants are given the question before deciding whether to answer, and have no time limit to answer questions; and the amount offered increases as they tackle questions that become increasingly difficult. The maximum cash prize offered in most versions of the format is an aspirational value in local currency, such as £1 million in the UK or ₹75 million in India. The original British version debuted on 4 September 1998 on the ITV network, hosted by Chris Tarrant, who presented his final episode on 11 February 2014 after which the show was discontinued. A revived series of seven episodes to commemorate its 20th anniversary aired from 5 to 11 May 2018, hosted by Jeremy Clarkson. The revival received mostly positive reviews from critics and fans, as well as high viewing figures, leading ITV to renew the show for several more series. Since its debut, international variants of the game show have been aired in around 160 countries, making it the best-selling TV format in television history, and is credited by some as paving the way for the boom in the popularity of reality television.