Now I know what the saying "Denial isn't just a river in Egypt" is all about.
A nearly comical lack of understanding of basic business principles. Starbucks notes it quite well. The audience isn't coming back. You can put Idol or whatever you want there. It's a dead zone now, and cable doesn't waste much effort pursuing it either. Some of the premium networks did make Saturday premieres of movies a good programming stunt, but their business models are obviously different enough to be "apples to oranges" here. The basic networks do some movie premieres, but there, too, they repeat them multiple times, thereby spreading the overall expense out.
It has kept up for multiple years (it's hardly breaking news that Saturdays were largely abandoned). If someone saw a wide-open opportunity, they'd have pounced. Now, perhaps you're at home and in a TV frame of mind on Saturdays. Good for you, but you're in a far smaller crowd than used to be the case. Throwing a tantrum doesn't change the reality.