I had a problem watching it on Apples site on my iPad using multiple web browsers. I could watch the vid for about 30 seconds, then it’d just blank out and had to refresh just for the same thing to happen again. Ended up having to watch it via Youtube.
Tried on Apple TV....who would have thought. . . . And nothing. So went to YouTube and it worked. I was more interested in iOS 11 on the phone rather than new hardware....did I miss it?