Hi, @mccauley
Thanks for reaching out, and welcome to the Roku Community.
We see that you have a concern about the blinking LED light on your TCL Roku TV, and we'd be glad to attend to it. Kindly be advised that Roku TV's LED blinking is an indicator that it is searching for a network connection or waiting to be set up with a connection. This feature allows users to be guided in setting up their Roku TV for streaming. Additionally, this feature doesn't have an option to be disabled aside from connecting the Roku TV to a network.
We hope you find this information useful, and if there's anything we can do to assist you further, please let us know.
Best wishes,
Kash
Takashi O.
Roku Community Moderator