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

Roku Premiere and LG tv

I have a Roku Premiere 4620RW and a LG 49UM6900PUA TV. When I try to connect, the picture ON the ROKU homescreen just flashes. I've tried changing I believe it's the ULTRA Color in the TV settings according to LG. Still does the same thing.

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