I have had my 50’ plasma TV for roughly 2 years now. I am noticing that there is a very faint white vertical line that moves across the screen moving left to right. Once it is off the screen another one appears and the process repeats. However, when I have my Xbox 360 running I do not notice the lines? Any idea what it could be?
If it doesn't happen with the 360, it most likely isn't the TV. Check the connections for everything else, and if possible try another cable/Directv box from another TV in the house.
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