Summary: I had my reservations about buying this tv after reading so many stories about production problems like "screen creases", but Amazon has a great return policy so I gave it a shot and fortunately didn't have any problems. The sticker on the back of my tv states it was built in March 2012. This is an excellent tv, but the big question is whether the high price is justified. I can't answer that question for anyone, but I can point out the advantages of this tv over others.
Summary: This tv has the best picture I have ever seen on a tv. The color is wonderful and the contrast is outstanding. But this is true only for near straight-on viewing. It does have an important flaw that could be important for some viewers: the tv loses contrast for viewing angles wider than a large couch; also, skin colors look pale at the wider viewing angle.