Hi, @Jayjayhart3264
Thanks for posting, and welcome to the Roku Community.
We appreciate for inquiring about the location of the backlight of your TCL Roku TV.
For this inquiry, we recommend reaching out to their support at TCL Support so they can assist you further with your concern. Each Roku TV manufacturer provides direct support and warranty services for their products running the Roku OS.
If you have any additional questions regarding your Roku, please let us know. We will be glad to assist you
All the best,
Kash
Takashi O.
Roku Community Moderator