salvagnn,
Does this happen on all inputs? (Cable box, DVD, etc) or just one specific input?
--HDTech
I just purchased this TV PN50A450 and am having a slight problem with it. The top of the screen flickers a small white line every so often. I didnt know if this was an interference issue or something wrong with the tv. I have the samsung surround sound HT-Z510 hooked up to it but just not sure whats going on with it.

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