thanks for verifying my question which was [email protected] from pc. I would love to get this tv but all light bleeds and clouding horror stories are giving me second thoughts. I don't understand why a company like Sony can't make a panel free from uniformity problems specially for the asking price.I picked up a 65" x900B from best buy today. This last week I've tried a few TVs. I wanted local dimming, 4k and I messed around with picture settings and such as much as possible to get the best picture out of each TV I could.
First the 65" Vizio P series which I didn't like because it had a green line of pixels all down the right side during some content, the Netflix 4k looked awful (didn't even look like 4k except in the title sequence...so strange), when off my computer would lose connection to the extent it didn't know it was there, and the backlight didn't seem to know what it was doing and was easily confused during dark scenes in moves and would flicker and just be very distracting. Overall though it looked pretty good, I would have been happy saving the money if it had just worked better but I have no faith in them fixing it with a firmware update at all. I didn't want to be stuck with this TV hoping and praying vizio would fix it.
Then I exchanged that for the 65" Samsung hu8550 (I didn't want a curved TV so this is their top of the line for me). The netflix experience was very much improved compared to the vizio--it looked great. The TV looked good overall despite some light bleed from the edges but I could live with that. The thing I couldn't live with was it didn't work with my computer at all (I'm just running Win 8.1 with 2 Nvidia GTX 780Ti, nothing crazy). The other thing I noticed with the samsung is it has terrible viewing angles. I know everyone complains LCDs are bad with viewing angles etc etc but the Samsung really takes the cake. Honestly I think Samsung alone must be the reason people bring up viewing angles so much--they were just such a joke on this TV. The $800 cheaper Vizio was much better in this regard and the Sony simply blows it out of the water. The Samsung would be entirely unwatchable from a 45" angle however the Sony is basically fine.
So I got the Sony. I was very surprised that it weighed 2x as much as the other TVs (101lbs without stand!) so that made it a bit of a challenge to get up on my wall but it looks great. Picture is much better than the vizio and better still than the samsung. It also works great with my computer and even runs at 3840x2160 @ 60Hz with the Nvidia GTX 980 I tested with. As far as I know the GTX 980 series is the only card out right now that has FULL HDMI 2.0 support, so it's good to know it works well. I tested that it was indeed at 60hz with the blur busters UFO test it also works fine with adjusting refresh rate to match video in xbmc/kodi to 24hz for instance for movies. I know a few people in this thread have asked about that so...there it is. It works. The TV is fast, it's a lot faster than our Sony 55HX950 in every respect--changing inputs, loading apps like netflix, switching framerates, even getting to settings like picture brightness. It's a very noticeable and welcome upgrade.
However I do seem to have a problem with my example. There is a big blob of backlight bleed near the middle of the screen (as with the edges) but it's very distracting because of its location and the fact that it's bright enough it's noticeable over peoples faces and clothes in indoor scenes. The only time it isn't noticeable is in bright scenes. I know the x950B would solve problems like these but this TV is already expensive enough that I don't feel like this is something that is acceptable. I'm also not willing to spend the extra $3000 just for the full array--I'd much rather wait a year and get an OLED when the prices drop if that is my only option.
Attached is a photo of what it looks like on a black background (the white bar at the bottom is from the taskbar but it doesn't cause the issue--it happens on a completely black screen too.
Any suggestions as to what I should do? I have tried changing the backlight and the brightness but it seems to have little to no effect. Should I contact Sony or Best Buy or do you guys consider this something you would live with? The edge bleed especially on the left seems rather excessive to me as well but I could almost live with that as it isn't very distracting.
Also, that picture you posted of your Sony showing major uniformity problems looks horrific. Did you manage to exchange it for a new one? Can you please confirm if the Sony 900b series uses a true 10 bit panel?