So I have been using my TCL Roku TV for quite some time now. Most of it's years of life have come from me using it as a computer monitor. Everything was perfectly fine until yesterday, when my screen completely dimmed. Upon turning it on and off, everything was fine, until a few minutes have passed. Thats when the bottom half of my screen dimmed out. I have tried everything I can, I tried powercycling it many times and that worked, for ONE DAY, today it started doin the exact same thing. I can't try any other method, considering I don't have a remote to control my TV with. Is there anything I can do?