I’m not native English speaker so just to be sure: I mean those shows where “random” (in quotes because I suppose not that many apply and the producers still have to do some vetting), not professional entertainers, just normal people go to TV and answer knowledge questions in some gamified way.

People get nervous when speaking in front of audiences, right? I know that while in TV, the audience is not present, but the person realizes they are being seen, so some nervousness is in place right?

How are they not just dying from being nervous? Is there some kind of coach or a program that prepares them for it? Or do they have twice or three times as many contestants and we only see those that made it without fainting? 🙃 Or is is tons of rehearsals?

I’ve never been in TV or even saw how such a set would look/feel like from the perspective of the contestant. Is it that the set actually does not feel like a big deal? I imagine annoying lights and weird people in the shadows (some of them of authorities) looking towards the set with serious professional looks on their face.