Jennings took over as one of the hosts of “Jeopardy!” in 2021, following longtime host Alex Trebek’s death from pancreatic cancer.

Ken Jennings has opened up about the one mistake on Jeopardy! that still haunts him to this day, as well as what the hardest part of the show is. Talking about his new book The Complete Kennections with Mental Floss, the Jeopardy! host discussed many aspects of the game show and how his perspective has changed from contestant to host.