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I am on my 5th Sharp 70 inch - most recently Sharp swapped out a 632 for a 640, and it has some serious clouding issues. Sharp sent a tech out to confirm the problem and made this offer: Swap out the 640 for another 640, or upgrade to the LC70LE847U for a minimal cost. Another option is a refund directly from Sharp. My main concern is that a top of the line set might experience the same issues as an entry level panel. What would you do if you were in my position? It was next to impossible to watch the Stanley Cup Playoffs with all of the noise in back of the picture... Thanks.!335&id=C929F6AF0B155736!335