It just goes all snow, exactly if I were to turn it off. There is some interference(sparkles, a couple vertical lines), but its not bad.
I wiggled the power cord, the rf, and the power switch, but found nothing. Actually, if I barely press the power switch down towards the off position it will go off, but then if I push back up it goes back on, whereas when it goes off by itself I have to switch it off and on again.
Here's a pic of the interference.