<Li> Phone a Friend (1998--): The contestant calls one of their friends, and has 30 seconds to read the question and the possible answers to them . The friend uses the leftover time to offer an answer . Since 2018, a member of the production team accompanies the friend to prevent cheating . </Li> <Li> Ask the Audience (1998--): Audience members use keypads to vote on what they believe to be the correct answer to the question . The percentage of the audience choosing each specific option is displayed to the contestant, after this vote . </Li> <Li> Switch (2002--03, 2010--14): The computer replaces one question with another of the same monetary value . Any lifelines already used on the original question are not reinstated . From 2010 to 2014, this lifeline was earned after the contestant answered seven questions correctly . </Li> <Li> Ask the Host (2018--): The contestant asks the host to help provide an answer on a question . No time limit is associated with the lifeline, while, in addition to standard rules, the host has no contact with outside sources to help them . </Li>

When was who wants to be a millionaire recorded