How can I tell if my Roku Ultra is streaming a show in HDR
Roku Ultra: I want to verify whether a show I'm watching in Prime or AppleTV or Netflix is actually playing in HDR or not. I know if I look at the info for the show or movie it says it's available in HDR, but I want to make 100% sure that's actually working on my setup with my TV, AV Receiver, and Roku Ultra.
When I use my Firestick 4k, and go to a an Amazon Prime show, it actually says (when I hit pause or when I start a program) whether it's actually playing HDR.
Is there a way to verify if the show is playing in HDR, and is it different for each streaming service?