Any verticle bar which is blue, red green about an inch wide can be fixed by replacing a control board in the set. Board number 6871QCH038C. Can be ordered through Parts Store.com for about 112.00....easy to install yourself, located behind two larger boards which are ribboned together. Takes about an hour.
Try a dvd player and see if it is there bad paneh if it goes away bad cable or satallite box
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