show was conceived and debuting in September 2002. The only difference between it and the British version was that episodes were halved in length – 30 minutes, as opposed to the 60-minute length of the original version. The change meant that the preliminary round of the show was eliminated, and contestants had to pass a more conventional game show qualification test. Exceptions to this arrangement, in which it was used under the name "Fastest Finger" included: primetime special editions of the programme; the 2004 series that was dubbed Super Millionaire, in which the final prize was increased to $10,000,000; and for the 10th anniversary special of the US edition, which ran during August 2009 for eleven episodes. The decision to remove this round would later occur in other international versions, including the British original before its reinstatement in the renewed series. Clock format In 2008, the US version changed its format so that contestants were required to answer questions within a set time limit. The limit varied depending on the difficulty of the question: The clock started immediately after a question was given and the four possible answers appeared. The clock paused when a lifeline was used. If the clock ran out with no answer locked in, the contestant walked away with any prize money won up to that point, unless the "Double Dip" lifeline had been used, in which case a failure to give a second answer was treated the same as a wrong answer. This format change was later adopted into other international versions – the British original, for example, adopted this change for episodes on 3 August 2010. The Indian version was introduced on 11 October 2010. Shuffle format On 13 September 2010, the US version adopted another significant change to its format. In this change, the game featured two rounds. The first round consisted of ten questions, in which the cash prize associated to each value, along with the category and difficulty for each question, was randomised per game. As such, the difficulty of the question in this round was not tied to the value associated to it, and a contestant did not know what amount they won unless they provided a correct answer, or chose to walk away. As part of this format, the amount of money a contestant won in this round was banked, but if they walked away before completing the round, they