Like Rockfan4, I was on our high school quiz team in grades 11 and 12. Three of us from one class were called to the office and asked if we wanted to compete. It was early '70s and I remember the studio lights being so incredibly hot. Three episodes.
About 10 years ago a crew arrived at the Tidal Power facility to do an episode for a show called Canada on the Edge or something like that. The worst part was standing at the edge of the water (it was March) trying not to freeze while answering their questions. They would shoot from one angle then do it all over again from a different perspective. It took about an hour and a half and was edited down to less than 10 minutes.
Years after that I would have people in our tours suddenly interrupt with,"That's where I've seen you before. You were on that show. "
Yes, and with that and 2 bucks I can get a cup of coffee.
Best
Les