I purchased a 51" F4500 last Saturday for $399. I bought it at the Best Buy in Muskegon, Michigan. I live in Grand Rapids, Michigan, but the three Best Buys here were out of stock, as are most of the Best Buys in Michigan. The panel is a TS02 manufactured in Mexico in November 2014. As I had followed the DNICE protocol for a 65" Panasonic ST60 a year ago, I had his slides and ran them for about 150 hours. I then input 22point8's 1000 hour settings with very good results. The set is replacing a 2012 43" E450, which was "calibrated" with the CNET settings for that panel. Those settings resulted in a very good picture on that set, and the 22point8 settings on this panel result in a very similar picture. The set is setup about 7.5 feet in front of my cycling trainer. At that distance, I notice, if I look for it, a slight screen door effect in some scenes. But not really bothersome to me. The picture on this set and the E450 is not quite as sharp as the ST60, certainly because the ST60 is a 1080 and these are 720s. And these sets do not have blacks like the ST60. But I really like Samsung's color reproduction, maybe even a little better than the Panasonic. At $399, this set is an unbelievable value. The Panasonic ST60 replaced a Sony 51" CRT rear projection set, which I purchased in 2004. At that time, plasmas were very expensive. This one is undoubtedly much better, and cost only $399. If you like plasmas, get one if you can.