Answer to "when tv is "cold"make the samsung startup noise, then screen screwy"I had the same problem. Opened it up, found a 10V, 470 uF cap leaking. I changed it and now the problem is worse. Now it only works if I hook up the antenna to the tuner. If I connect it through the HDMI input the signal is all greenish static noise. I'm going to try the freeze spray when I get a hold of a can of spray.