So I got the 65ju7500 samsung and set it up next to the x850c last night (my receiver has 2 HDMI outs, so I can see both at the same time
Watched parts of the movies that were giving me blue edges on the sony (after earth, Black hat, wall-e, etc..). The sony still had the issue. the samsung, well, did not AND in general I felt the picture looked better on these movies.
I also watched sports for a bit. Both were comparable, but the grass blur-ing that some have seen wasn't nearly as noticeable on the samsung. I gave the nod to the Samsung.
Tizen... pretty snappy. I miss android already. (I even liked how WebOS 2.0 works better than tizen). However, it's tolerable and pretty easy to deal with. Just could be better. The remote is ok. slightly better than the sony for me, but mostly a wash.
Plex has DD out. wish I could run kodi on it, but eh. I have a HTPC for that if I want it.
Seems like CEC/ARC work about the same. Sony had more control over what the TV does in this regard. Edge to Sony.
Overall, I gave up on the Sony due to the blue edges. Getting the Sammy for $200 more was a deal I couldn't pass up. I'd have paid $400 more to not deal with the edge issues on the 65".
That said, I looked at the 810c while I was picking this up. If that would have been out when I first started with the Sony, I would have got it. I really couldn't see the color difference (maybe a bit). I even generally thought it looked better in the 65" size range than the 850c. And NO DAMN BLUE EDGES! After seeing three more of them in stores ALL with the same issue, enough is enough.
Anyway, the Sony goes back today. I just boxed it up and the thought occurred that I totally forgot to factory reset it
For those of you with blue edge issues, (McLingo, this means you), TAKE IT BACK.