Hi all,
Here some images, same as I sent to Sony tech support. Disclaimer: it looks mostly worse in real life, my camera is actually covering for the Sony more than it should

(couldn't bother to find a full manual setup on the camera to keep it more real). All pics shot in the evening, had 2 smaller lights on in the room, some flare from these 2 lights can be seen on some shots, ignore that.
First off, some over-whiting examples. These are from a clean reset, changing to Cinema and leaving all else as is. This is worse if I turn off the light sensor, but with light sensor on, the image gets just more bland, same whiting effects can be seen.



Now here is an image I snapped almost by accident. I am almost sure this commercial does not look this way and is supposed to be solid red? (Not 100% sure, there's always this slight chance this is the way the commercial is, too lazy to go back, this one was in my snap roll

)

Playing around with all settings as mentioned earlier, this is about 'as good as it gets'. Notice that it doesn't yell '
in your face contrast and excellence'. Anyways, it is still very, very, very bland

Now, to give some perspective, I shot some 'side by side' images of stills (cable and blue ray of Fargo) both on the HX850 and my older XBR2. Needless to say the XBR2 looks way better on all, and interestingly also some additional artifacting / effects I didn't notice before.
ESPN 720p cable shot. Few things to notice; inevitable (purplish right, greenish left) light haze, poor PQ.
HX850:

XBR2:

Here's Ezra Klein on MSNBC, hazy 850 and more clear XBR2 still:
HX850:

XBR2:

Stills from Fox NFL. Notice the green (like the earlier RED on previous pic) seems to bloom to a strong green in the center, while if you look at the (correct) XBR image, the grass is evenly colored (NFL would shame itself if it would allow such color variations on their ~grass~

) The green on the right side of the HX850 is kinda more close compared to the XBR (and reality) Also note blue blur in Fox logo:
HX850:

XBR2:

Here are stills from a 'Fargo' Blue Ray disc. Watch the hazing off colors of for example the rear wheel, the green hue on the car's underside, the windows, the snow, there is the ladiy's boots, the tail lights, the orange on the ambulance, etc. It's a clear example of where my HX850 is not doing explicitly
'bad', but where the more you look at it, the more you notice things being 'off' color, too white or hazed, etc. It's what I have had bugging me all days since I had this. I watch it, and while it's not terrible, it does not look 'right' a lot of times.
HX850:

XBR2:

Now, one of the most striking stills from cable. I'd buy the XBR car from clean santa, not the bland greenish hazed up car from HX850 santa.

HX850:

XBR2:

I have also made up my mind on the return: It's going back as there are only 2 options: 1) (Most likely) this is a bad specimen, no reason to keep it or spend weeks with Sony doing 'repairs' and 'ordering parts' 2) This is simply how the TV looks in which case I also don't want any of it

Thanks for listening
Cheers