Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
I was just wondering if the Amazon Channel is HDR capable? Netflix and YouTube HDR are working perfectly for me through my Sony KD-43XD8088 but programming on Amazon that I know is HDR enabled and plays in HDR perfectly through my NVdia Shield TV on the same TV (content such as Grand Tour and The Man in the High Castle) just will not give HDR, only UltraHD.
Re: Roku Streaming Stick+ (3810EU) and Amazon Channel
Per Amazon, also true on SS+ (having used it myself):
High Dynamic Range (HDR) HDR video features significantly increased color range and enhanced contrast between highlights and shadows. This delivers picture quality that is much more vivid and lifelike.
Supported Devices At this time, HDR video is available on the following Amazon Video devices, for selected models from 2015 or later:
Samsung SUHD TVs, and Samsung Galaxy Note 7 Galaxy 8, 8+, Galaxy Tab S3 mobile devices Sony Triluminos 4K TVs and Sony Xperia XZ Premium mobile devices LG OLED and Super UHD TVs Roku Ultra and Roku Premiere+ streaming media players