Welcome to the Roku Community!
We recommend contacting the TV manufacturer - TCL to inquire further. I'd suggest starting there to see what options or suggestions they can provide. Each Roku TV manufacturer provides direct support and warranty services for their products running the Roku OS. They'll be the best ones to help regarding your issue.
You can contact them here: TCL Support. Call them at 1-877-300-8837.
Please keep us posted on what you find out.