Got a 4k TV (finally). I like using my Xbone to control my cable box and use the HDMI-In that the One X has. Noticed that my cable box still says that the max output resolution is 1080p. I do some searching and see that the box I have definitely is 2160p capable, figure I’ve been using an old v1.4 cable and swap it out, still 1080p max. Plug the cable box directly into my AV Receiver, now 2160p is available, back into the XboneX, and back down to a max of 1080p. That’s when I decided to google... and apparently MS made this 4k console but left the HDMI-in incapable of 4k and HDR pass through with an old HDMI version. Granted, there are few live broadcasts available in 4k (occasionally sports events and things), but my cable box supports several apps which stream 4k HDR content and supposedly 4k HDR content is coming to on demand “soon”. It’s more annoying than anything, but WTF MS?