I’d like to see an actual academic, instead of a ‘celebrity’, in there.
I’m sure they can find one who is sufficiently ‘personable’...
Alex Trebek was an actor. He was bright and personable, but I wouldn’t call him an intellectual.
They need someone smart enough to handle the job, but not necessarily an academic. There is a performance element to the job, and many academics couldn’t perform if their lives depended on it.
Being a game show host requires a specific skill set. Alex had it in spades. They need to find someone who has as many of those skills as possible.