Willis said:
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I might feel differently when I get a blue ray player, but for the Cable TV content, there isn't a lick of difference.
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You will not see the difference, at least not from a distance, even with BR.
as for content from cable TV, well... most of the times it's 720p or 1018i
as for canon vs. nikon I also like the colors on canon pictures more, but it can be easily fixed in PP, as for noise - d3s has an acceptable (pro) IQ up to iso 25600 and that's amazing!