Wondering if AVPlayerViewController is preferred for playing arbitary video/audio streams on tvOS or if creating a custom UIViewController with AVPlayer is the way to go. I suspect the latter, but don't want to miss the boat if AVPlayerViewController somehow offers the best user experience. I don't see any way to assign externalMetadata if using an AVPlayerViewController, so unless I'm missing something that's probably a show-stopper right there.
Also, it seems like the TVML/client-server folks are getting all the love with their MediaItems capabilities. Is there an option for native developers who might be interested in things like media interstitials? Thanks!