I spent allot of time in this Forum before I bought my 55" HX920..
After seeing both good and bad posts about this SONY TV I was a little torn if I really should pull the trigger..
Fortunately, I know the Sony-PM from where I used to work, and I expressed my concerns. He sent me 2 TV's at once saying I can choose the better and give the other one back.. SWEET! I was very grateful he offered this option, as I did not want a set with a faulty pixel, a crease or any other illnesses..
Turns out, after hours of testing and comparing with the AVS-HD BluRay and some Movies (my Panasonic Bluray Player has two HDMI outputs) I came to the conclusion that both sets have the same issues but one of them less..
The date of fabrication is April 2012 on both sets with about 5 Serial-Numbers between them and these are models released for Switzerland.
The HX920 has increadible picture quality and I do not regret replacing my Samsung 9-Series which also had Full backlit LED.
However, this TV has DSE and if you cannot live with that you better look for something else. I believe there is no such thing as a HX92 with 0% DSE out there - and if anyone has one, you're damn lucky!
Also, the "crease" is still slightly there, but it is only on the extreme outer left side and can only be seen off angle. This is the same case on both TV's I have here and also on one I saw on display at another store. Both TV's have no dead pixels and also no light bleeding even with Backlight LED Dynamic controll disabled.
Input Lag is very minimal, as long as GAME mode is in use.
No issues with my XBOX360 or PS3.
Everything is pure perfection on this TV, except the DSE.
I chose to keep one of them even if I am extremely picky.
The DSE is only noticed when the camera moves sideways across a blue sky or another pale colored background. This can be best tested by using the Xbox or PS while lookinh up at the sky in Call of Duty and panning slowly to the side.
I chose one of the TV's over the other, as it has a little less DSE and also the color uniformity seems better.
If you can live with some DSE, as I chose to because the TV is beautiful and perfect otherwise, go for it! Grab one!
I spent hours testing these two sets and if anybody has a question, I'll be glad to comment.Edited by DaMac78 - 1/27/13 at 1:23pm