Hello @rnguyen522
Thanks for reaching out here in the Community!
Try performing a factory reset on your TV and see if that will resolve the issue you're experiencing. Check out this Support link for instructions: How do I factory reset my Roku® streaming device?
Moreover, if the issue persists after attempting the suggestion above, contact the TV manufacturer 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.
You can contact TCL Support here: https://support.tcl.com/us or at 1-877-300-8837.
All the best,
Kariza
Kariza D.
Roku Forum Moderator