Hi,I bought my tv 2 years ago from costco.. since then, I have had these weird lines that move vertically up the tv.. usually 3 or 4 at a time about a couple inches thick each... with a light background, you don't notice.. on a dark background, it really stands out.. not sure what it is.. they move continuously up and then up again.. my email is jshemnitz@kforce.com
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