I'm getting 2.0 on the Apple TV (4K) and 5.1 straight through my Samsung app, but neither are showing 4k HDR. All I'm getting is 1080p. Anyone know why? I've had a look for other versions on the app as someone suggested, but I'm not finding anything. --- Post Merged, Sep 26, 2018 --- In fact, I'm not seeing anything in 4k amazon... Just tried Red Oaks, which I watched in 4k HDR last year and I'm coming up 1080p. Weird. Have amazon rolled it back, or is something set up wrong?