LOL man that is EXACTLY what I used to have to do on my parents old 20" Zenith tuber My dad would go up to it and start fiddling with the controls trying to fix it, and then I just smacked it on the side and the picture restored itself lol - I was 9 at the time heheh

1xAxiom ax 1.2 2xPolk Audio R30 2xMordaunt-Short 3.0 H/K AVR 225 Paradigm PDR-10 Sub HTR MX-500