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.

A game show is a genre of broadcast viewing entertainment where contestants compete for rewards. The shows are typically directed by a host, who explains the rules of the game as well as commentating and narrating where necessary. The history of the game shows dates back to the late 1930s when both radio and television game shows were broadcast. The genre became popular in the United States in the 1950s, becoming a regular feature of daytime television.