(sorry for my bad english) I have bought the 65F6400 yesterday. I was really affraid for clouding issues. in the last 1,5 year i have had about 7 tv's returned for all diffrent reasons.
My last tv (lg 55lm960v) was not perfect (little clouding), but because it was a store demo for a good price and i didn't had the opportunity to return it, i eventually learned to live with it and after a while i was actually satisfied with it.
About a month ago a friend let my tv fall down and the damage was so high that with the incurance money i wanted to buy a new (bigger) tv since this one was only 55".
So i ended up in this forum and decided to buy one yesterday. The image quality was a bit better on de LG, but this one is really good to, especially on HD channels. Yesterday evening i was watching in the dark and i have no clouding at all so that is a good thing. I thought on some occasions at a very bright screen (and on light screens with dark at the sides) i saw a little flashlighting on the vertical sides but im not sure yet. This was really worse on a other tv i had in the past and i don't think this will bother me how i saw it. I will look tonigh again a little better for this.
Only thing is that i cant get the second (touchpad) remote to work