After using it for a few hours (about 5 hours), it suddenly turns into a radio state. If I unplug it and leave it, it works again. Since it seems to be faintly moving when in radio state, I think it's probably an LED light issue. I tried to fix it, so I cleaned the dust off the circuit board, cleaned the internal fan, cleaned the connectors, and reapplied CPU grease, but the problem didn't improve. I feel like I've pinpointed the cause to the point where replacing the LED would fix it, but I don't have the skills to do that, so I'm giving up and listing it for sale. Also, I had attached a fan to the upper right of the back for cooling the TV, but the adhesive tape was strong and tore some of it off when I removed it. Please check the images for details. 42-inch TOSHIBA LCD TV - Brand: TOSHIBA - Model Name: 42Z8 - Size: 42 inches - Power Consumption: 198W - HDMI Ports: 3 ports