I purchased a 58B860 for my living about a month ago and got spoiled so decided I would also upgrade the bedroom. Since I didn't necessarily need all the interactive features of the 860 I thought I would buy a lesser expensive model. I researched and found the new C550, which can be changed to a 590 adding Cinema Smooth. I assumed it should be same picture quality as the 850/860 since all features and specs look about the same. However, I did notice the contrast ratio to be lower on the 550, but everyone seems to call BS on all the contrast #'s game played by the manufacturers. But other than than that, looks like they have the same tuner, 600HZ, little diff. color enhancer, but overall pretty much the same, from what I can tell. The problem, the C550 looks horrible compared to my B860. The C550 doesn't have the color management feature of the the 860, which I feel I have gotten a real good picture out of thanks to the settings given in this thread and others. Am I missing something? Does the 860 have things I am not realizing causing the picture to be dramatically better than the C550? Thanks for any help!