Not gaming related, but for those who are getting, or just got an OLED, do yourself a favor and borrow an Xbox One S (or X) from someone if you don't already have one, or just buy a dedicated player.
Finally got to watch this today, and oh, my god. The hype it gets is 100% justified. Unlike the majority of the currently available UHDs, this is native 4K, and really shows the potential of the jump from 1080p to 2160p, even at a similar viewing distance. It's pretty much a reference/demo disc for these TVs.
True story, the store where I picked up my TV today had the video playing on most of the screens, it looked amazing. I don't have an XBS or XB1X but I will certainly get one next year for sure.