First of all, that is not accurate before or after 1973. Secondly, you err via generalization. Third, it's one thing to be nostalgic for pre-1973 shows, but business models? What's the point? Next you'll be waxing nostalgic for the Big 3 automakers' gas-guzzlers, or pre-deregulation air travel. To quote Bette Midler: Why bother?
Making shit up when you don't like the facts is so 2019.