I am 95 % sure the port and hdmi cable support 4K HDR. The TV instructions say that both the streaming device (Roku Express 4K+) and the TV must both be set to 4K. I set the Roku to 4K HDR TV but the TV option to choose deep color did not light up. I have tried googling and searching the TV user guide but Can't figure out the problem.
Hi @wlightell,
Greetings from the Roku Community!
We appreciate you reaching out, and we would be happy to be of assistance here.
Here is some information regarding this that our support page has provided: How to set up your Roku® streaming player for HDR
Let us know what you find out!
Thanks,
Rey