Thanks for letting us know about the issue that you are experiencing.
Have you tried contacting your Roku TV manufacturer support yet to inquire further? I'd suggest starting there to see what options or suggestions they can provide.
If you still aren't able to clear up the issue, feel free to send me a private message with your Roku account email address and the serial number of your Roku TV found in Settings>System>About. I'll follow up with you directly to see if there is anything else we can recommend.