the perpetual human quest to become a game show contestant.
For the most part the advice sounds like common sense. If you want to get on The Price is Right, be "upbeat and interesting" with the show's contestant pickers. It's better than being downbeat and uninteresting, no? For Jeopardy and Millionaire, brush up on general knowledge so you can pass the contestant exams. For $100,000 Pyramid, know the rules and dress for TV.
Some shows require videos of wannabe contestants, like Beat Shazam. Recent photos are enough for Hollywood Game Night, and pop culture knowledge is also recommended.
All in all, it sounds like you should watch the shows and see if you'd be good on them. You want to win, don't you?