Hi, @RBS6980
Welcome!
Thanks for reaching out about the issue you've encountered with your Roku TV not powering on. I'm here to refer you to the right support
For this matter, it's advised to contact TCL's support and inquire further for assistance. Roku TV manufacturer provides direct support with their TV models.
To contact them, refer to TCL Support
Hope this helps.
Thanks,
Roku Community team
Takashi O.
Roku Community Moderator