Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

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Horizontal red lines

I cannot notice these during normal television but noticed them while watching a movie last night and are very evident when in video 4-7 where there is no input coming through. They show up on the black screen as curves horizontal red lines. Can this be feedback from something in the area or is this an internal problem with the tv?

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Focus block... Have a qualified tech check it out. The FB packs more than a 20,000 volt punch and could REALLY ruin your day...

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