I'm really not sure the streaming context is too relevant here. Unlike a lot of things on streaming services this isn't all being released at once. Apart from the two episodes at the start it is coming out one a week. And it needs to keep people hooked week by week. No one has made a commitment to this. Anyone can bail out at any point. So yes, it's streaming, but not in the big commitment way. And I'm really not sure they're taking the best approach ... Then again I am hugely anticipating the next episode. So overall happy. Even if this feels like rather a scary new venture for Who, and I'm not convinced they're taking the best approach. It doesn't seem as assured as RTD1. For me anyway.