Comment by jfengel
That doesn't seem like an apples-to-apples comparison. There is a lot of junk on the broadcast and cable channels as well.
I expect there to be more aggregate junk on Netflix just because there is no floor: networks have only 168 hours a week to fill, while Netflix can throw anything at all on the pile.
But it doesn't matter, since unlike the networks, they're all available at once. If something insults your intelligence, you don't watch it.