"So far so GREAT!"4.5 starson by spaceflows
Pros: Amazing picture and versatility of controls. Love the SmartTV interface & applications like Netflix, VuDu, Vimeo and Google. VuDu has programs available in "HDX" which look INSANELY BEAUTIFUL! All apps load and play smoothly.
Cons: Auto-brightness fluctuates constantly at low contrast settings, regardless of ECO settings - very annoying. Web browsing not its strong suit. Buzzing sometimes very apparent depending on connections: component=bad, HDMI=better.
Summary: Overall the Samsung PN64D8000 HDTV is simply AMAZING! My girlfriend and I watched "Bridesmaids" on VuDu the other night in (the HDX version: highest HD quality) and we felt like we were at the movies again, only this time nobody was kicking the back of our seats...except the cats :) The colors were rich but not too punchy, and the textures were seriously life-like.
I am experiencing an auto-brightness/contrast control problem when viewing in dim or dark rooms. The brightness/contrast appears to automatically go up and down intermittently but still often enough that it quickly becomes very distracting and annoying for such an expensive and beautiful piece of technology, especially to the eyes of a videofile such as myself. This really distressed me at first... BUT, it appears that this problem only occurs when the contrast setting is below 50 (which is recommended for the break-in period of 150 hours or so). Not sure if this is due to the Local Contrast Enhancement feature (that I cannot seem to find and therefore access). Besides this early concern, the Samsung PN648000 is turning out to be one mean movie/gaming machine! I played Gears Of War 3 a few nights ago with my buddies online and I was floored by the experience. The 600Hz refresh rate makes a tremendous difference when stacked up against my previous Sharp Aquos LCD with 120Hz. I have not yet tried the "Game Mode" setting which is said to accelerate the gaming experience even more so.
I was very concerned about the "peeling" issue discussed quite a bit on the tech blogs regarding this model, but so far I have not noticed any screen peeling and I have had this TV for a week now. I am keeping my eyes peeled though... Sorry, that was just too easy, I know.
I would highly recommend this TV to anyone who takes their movies and/or gaming seriously. I was able to get this at Best Buy with 4 years of full Geek Squad support at a price matched to the lowest found on Amazon for a new model. I suggest taking this approach (price matching at a large retailer) as the support and return policies are pretty convenient and reassuring. The picture on the PN64D8000 has to be seen to be believed!