Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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Level 7

Premiere 4K HDR Help

So I have an lg ultra hdtv ub8200 TV that is about 9 years old. When I am using my Spectrum+ through Roku Premiere, the display is probably the worst that I have ever seen and so I tried to force the 4k HDR 60x and even though I am on the correct input, I am getting a no signal from my TV when I try to get into the Roku. What can I do to solve this problem? Thank you!

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