^ From RTINGS.com:
"If you've got a room with wide seating and many lights, then the LG SK8000 is a better choice, but for a dark room with seating directly in front, then the Samsung NU8000 is better. The LG SK8000 has better viewing angles and reflection handling, whereas the Samsung NU8000 has a better contrast, better black uniformity and can get brighter. The Samsung NU8000 supports the Freesync variable refresh rate to prevent tearing when playing video games and if you watch a lot of sports, you will appreciate the Samsung's better gray uniformity."
I tend to agree with this specially on their assessment of the LG as I owned an earlier model where back (edge) light bleeding is specially noticeable in a dark room.