How to pronounce “alex trebek” in English

You get used to the cadence of Alex Trebek's voice, which is a very important part of the buzzer timing aspect of the show.

He goes to Los Angeles, and he's there with Alex Trebek.

Somehow I'm in this weird niche, thanks to Alex Trebek.

And so, initially, my first goal, really, was to buzz in, have Alex Trebek say my name, and give a correct answer.

Anyway my question is, I've always wondered this, does Alex Trebek actually know the answers to the questions?