Hi @hmraub,
Thanks for reporting this issue to us.
We understand that you're having display issues with your Roku TV, and we appreciate all the troubleshooting steps you have attempted.
At this point, we suggest contacting your TV manufacturer, as this may be a hardware issue that needs reinforcement with their help. You can refer to this link to directly contact support for your Roku TV.
We hope this helps. Let us know if you have further inquiries.
All the best,
Janadee
Nadee K.
Roku Community Moderator