The Hulu app supports all the Mixed Reality Headsets and is available in the Windows Store now:
https://www.microsoft.com/store/productId/9N997353Q2GF
IMO The days of one vendor Apps for this kind of content might be limited. That’s not to say there isn’t a rosy future for HULU just that what I really want is a content app that offers me content from all providers not just one but for now this is great!