A game show created in the United Kingdom, in which contestants attempt to answer general knowledge questions in an intimidating atmosphere in order to scoop the £1 million top prize. The original series was hosted by Chris Tarrant, and its modern-day revival is hosted by Jeremy Clarkson.

American version of the tense gameshow where contestants tackle a series of multiple-choice questions to win large cash prizes.

The iconic game show returns for a celebrity-filled prime-time event hosted by Jimmy Kimmel.

Israeli game show based on the original British format of "Who Wants to Be a Millionaire?".

Baak Maan Fu Yung was a game show from Hong Kong, based on the original British format of Who Wants to Be a Millionaire?. The show's host was Kenneth Chan. The main goal of the game was to win 1 million Hong Kong dollars by answering 15 multiple-choice questions correctly. There were three lifelines: 50:50, Phone-a-Friend and Ask-the-Audience. Baak Maan Fu Yung first aired on April 29, 2001. It was broadcast by Hong Kong's ATV.

Mike Hosking hosts the first New Zealand version of the globally popular quiz show Who Wants to Be a Millionaire?

The French version of the hit television quiz show, "Who Wants to Be a Millionaire?" Starting with easy multiple-choice questions that gradually get more challenging, contestants have only their wits and three lifeline chances to see them through to the grand prize of one million euros

Australian game version show based on the original British format of "Who Wants to Be a Millionaire?".

Filipino game show based on the original British format of "Who Wants to Be a Millionaire?".

Irish version of the originally British television quiz show "Who Wants to Be a Millionaire?".

Who Wants to Be a Millionaire? was a South African game show based on the original British format of "Who Wants to Be a Millionaire?".

Malaysian version of the originally British television quiz show "Who Wants to Be a Millionaire?".

Singapore version (in English) of the originally British television quiz show "Who Wants to Be a Millionaire?".

Nigerian contestants win a cash prize as they answer general knowledge questions correctly. The programme offers an unprecedented top prize of One Million Naira for contestants successful in answering the full sequence of 15 questions.

Ugandan game show based on the original British format of "Who Wants to Be a Millionaire?".

Kenyan game show based on the original British format of "Who Wants to Be a Millionaire?".

A spin-off of the American version of "Who Wants to Be a Millionaire?." In this version of the gameshow where contestants tackle a series of multiple-choice question, the dollar prizes are much higher.

Indonesian game show based on the original British format of "Who Wants to Be a Millionaire?".

Canadian game show based on the British format of "Who Wants to Be a Millionaire?".

The series returned to prime time on August 9, 2009 as an eleven night event of hour-long episodes, finishing August 23, to commemorate the 10th anniversary of the U.S. version of the franchise.