From our friends at Bear Manor:
https://www.amazon.com/dp/B0F8Q58N7PI helped them a tiny, tiny bit, mostly with
I've Got a Secret (of course) and some TVG searching. I can tell you that this is going to be the deepest dive into this very specific topic that you've ever seen, and much more carefully curated and researched than almost anything you're going to find on the internet.
The book is arranged alphabetically by the name of the game show, not by the celebrity. Because this is such a massive project, it will be split into three volumes. Volume one gets us up to
It's Your Bet. There is some question about how (or even whether) they're indexing the celebrities. I asked one of the authors and even he wasn't even sure. (They haven't seen the final product themselves yet.) I also don't know the timeline for the other two volumes.
