I plugged in a LED light strip via USB on the side of the TV. When the Element ROKU TV turned off the lights would turn off in approx. 15 minutes after the ROKU TV was shut off. Our community has a new cable company (Hotwire) that runs off of fiber optic. They had to come in to install all new materials. Now the same light strip stays on all night after the TV is turned off. I switched the USB option in the ROKU TV settings to both on and off ( it was on auto) and that did not fix the problem. Any help would be greatly appreciated!