model AV-48WP74 big screen tv problem

I TURNED ON MY TV THE OTHER DAY AND THE PICTURE IN THE TOP LEFT HAND CORNER WAS ALL BLURRY AND BENT. THE COLORS WERE OVERLAPPING LIKE A RAINBOW. WHEN WORDS SHOW UP IN THE CORNER THEY ARE ALL DOUBLED UP. THE PROBLEM TAKES PLACE IN ABOUT AN EIGHTH OF THE SCREEN. WHAT IS THE PROBLEM.

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