With perfect sound, change channels and from time to time the image flashes, it appears as a flach (an instant) and is cut. One time from half up, another time the whole screen, another time 3/4 of the screen and so every 10 or 15 seconds. When the whole screen appears, you see a horizontal line (pencil stroke) It will be that I have to put aluminum foil to isolate plaques or what people think about the forum From now thank you very much for helping EL PELA