The power button on your Android TV is located in the lower right corner of the remote control. It looks like a circle with an arrow pointing up inside it and has a ‘Power’ symbol next to it. When you press it, your Android TV will turn off or on depending on its current state. The power button may also be used to put your device into sleep mode if you have enabled this feature in its settings menu. You can also use it to force-close apps that are not responding correctly, which can help reduce strain on the system resources and improve overall performance.