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General discussion

difference between PN50A650 and PN50A550?

Mar 2, 2009 11:56PM PST

Wondering if someone can explain if I should be concerned or care that on the CNET comparison of the above 2 tv's, it doesn't list 1080p as an "Input Video Format" for the PN50A550? What does this mean and how does it affect the performance of the tv?

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