When the tv is powered on, the red power indicator lights up to indicate it is on standby. When hitting the power button again, the light is supposed to turn green and the picture is displayed. In my case, this does not always happen. To further complicate things, sometimes the led will change to green but there is still no picture or sound.

Televison & Video - Toymax - Magnavox 47MF437B 47 in. LCD TV