I googled the issue that brought me to your video. Mine is a similar TCL model, same sensor and light on the bottom. My TV is wall mounted above a bed, pulling it down would be a hassle. Without compressed air on-hand and watching your vid, I drilled a small hole in the back cover where the sensor is located, I then stuck q-tips in there with isopropyl and cleaned it that way. We'll see how long it lasts. :) Thanks for the vid, it helped me get an understanding of the IR sensor.
