The SPC has a sensor that you will sit in front of the TV. It will start to flash a red light after 57 Minutes. When it starts flashing, it wants to know that you are still watching the TV and want it to stay switched on. You let the SPC know this by pressing a button on your TV’s remote control. We generally recommend pressing the volume button at this point. Once you do this it will reset it for another 57 minutes.