I have a Philips LCD TV 47PFL7403D 47″ Full HD 1080p with Perfect Pixel HD Engine. I bought it a year and half ago. Suddenly, I start seeing vertical thin white lines on the screen that are more visible when black color is on TV. The lines make the picture unclear, but you can see all the colors on it. I see the lines when playing a DVD or just watching cable. They are always there. Do you know what the problem is? I have a sony surround system connected to it, would the speakers cause the problem?
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