As Jeopardy devotees know, if you're trying to win on the show, the buzzer is all. On any given night, nearly all the contestants know nearly all the answers, so it's just a matter of who masters buzzer rhythm the best.
The remedy for speech that is false is speech that is true. This is the ordinary course in a free society. The response to the unreasoned is the rational; to the uninformed, the enlightened; to the straight-out lie, the simple truth.