I want to throw this little tidbit out there for anyone that it might possibly help out. I may just be an idiot for not understanding the settings, but here goes anyways.
On Wednesday night when I got the tv, I was watching it and in awe on the blacks being so dark, and even my wife made comment on the darkness. Well, last night, as soon as I got home, I entered the setup menu on my Verizon FIOS Motorola DVR STB, and made a few changes for the heck of it (I was trying out different resolutions). One of the other changes I made, was in the HDMI extra/advanced settings section. I changed (not knowing what it is and still dont really...lol...) the color mode from Ycc to RGB mode. After setting this stuff, I walked away cause the wife wanted to watch some stuff. Later that night, I started watching again, and was noticing that something wasnt right. The blacks were now greys like on the Sammy 5044 it replaced. I was like WTF. I thought the tv had lost settings or something, but they looked fine. I forgot until right before I went to bed, that I changed that setting in the STB. I went back in and set it back to Ycc, and BAM! Back to the beautiful blacks that I saw the night before. Just keep that in mind if you are fiddling around in a Motorola DVR STB. Peace!