I finally have a good set!!
After returning a KDL50EX645 due to extreme light flashing and returning a samsung un50es6100 due to major light flashing and 6 dead pixels I decided to throw more money and get the Sony KDL55HX850...
Screen uniformity is near perfect with no light leaking anywhere. 1 have 1 half dead pixel... But it's not bothering me at all as I have to me 3-4 feet away to see it.
PQ has been amazing out of the box compared to the samsung. 3D is fantastic too.
Only problem I have with this TV that I did not had with the previous too are that HDMI 40ft redmere cables are not working. It flickers.
My receiver is located 40ft away from my TV.. I guess I will have to bring back the receiver close to the tv