Mayim Bialik Out as ‘Jeopardy!’ Host The departure of Bialik, who had been absent from the show for months, leaves Ken Jennings, a former champion, as the sole host.
Celebrities Are Just the Start of the Expanding ‘Jeopardy!’-verse Despite the loss of the show’s longtime host, viewership has held mostly steady, emboldening a move to spinoffs and tournaments, including a revival of “Celebrity Jeopardy!”