[slg]

>and literally nothing else

Why is this a need? The minimum unit you can purchase is a month of service. You are free to subscribe and unsubscribe as many times as you want. I'm not aware of a single service that costs more than either a single movie theater ticket or a single newly released Blu-ray/DVD. So you are free to subscribe to HBO watch Game of Thrones, cancel HBO, subscribe to Netflix, watch BoJack Horseman, cancel Netflix, subscribe to Amazon, watch Marvelous Mrs Maisel, cancel Amazon, and so on. That is much more control and choice than cable subscribers had a decade ago. We don't need to make perfect the enemy of the good.