That's not how cable works, they bundle content you don't want with the tiny amount you do. What you are describing allows me to make much finer grained choices about my content.
I'm suggesting that if you add eg "Miramax" to your library by paying their subscription you gain access to their back catalogue. I may only want one or two movies from them, but thanks to the bundling I have access to way more. Or Disney might divide subscriptions up by its studios or labels. I don't see them offering individual shows in a subscription, as that has limited appeal (has been done already and doesn't _really_ require its own platform)
Overall, it's not so different from cable channels, except that it's on-demand.
