As I told you you are living in pre cable days. Only 3 networks at most in any market and maybe 1 or 2 independent stations.
Cable destroyed the world you are referring to, and streaming has eroded it even further
Today the highest watched scripted network broadcast show doesn’t even pull in 11 million viewers a week.
https://variety.com/2022/tv/news/most-popular-tv-shows-ncis-fbi-chicago-fire-1235263770/amp/
Looking at the numbers at your link it’s no wonder new products come along that I and many people know nothing about. Something I’ve noticed in the last few years. No one is watching. Ten million out of three hundred plus million…