Thanks for the link but that doesn’t appear to be it.
The book I remember didn’t go into radio or TV shows.
It would almost be like one of those Star Wars technical manuals mixed with histories of the various planets at different points in time.
Maybe it will come to me at 3 AM someday in another decade.
Plenty of books here, most unread.
I got pulled to a RCPL preview book sale of old inventory. No plans to buy anything but I wound up buying a copies of Ice Station Zebra and one of the Monk mysteries in hardback for $3.00.
They will probably sit with all the other books that never get touched.