This I truly believe:
NO 2 TV`s are alike or will ever be alike , meaning behind statement:
For example , you buy 2- 46'' F8000 / you unbox both / you plug in both to the same type feed , but not the same source. I.E , one cable line going to home + 2 cable boxes the same.
Turn on both and it will highly unlikely the the two will be the same.
There are so many factors involved with the production of any electronic item , and unfortunately , tv`s are the worst.
1 / you have the general sub assembly ( tuner board / power converter / audio processing / video processing and so on.
Most , if not all , of this will be done on a "Wave Solder" machine , fairly consistent , but not 100%
2 / The you have the basic assembly of the sub components , done by under paid humans , just trying to get through the day.
3 / Next you would have Final assembly were the installed sub-components are hand soldered / such as video board to video input connectors -- same for audio board to speakers.
4 / After it is build it may or may not go through some sort of a quick inspection , probably visual , maybe turn it on to see if there is a picture.
5/ After that it is off to packaging and shipping.
Now the consumer has the job of weeding out the good from the bad , for at very minimum adjust the color ( white balance ) and another fine tuning , that may need to be done.
I highly doubt that Samsung or any other TV company is going to take the proper time to set up a tv , like the F8000.
Maybe that 4K res , that is on Samsung`s web site for 40K , might get some more hands on stuff before it goes out the door , but not much.
This my friends is the darker side of the tv market , as it is known today.
So be careful , in how ever long you have to check out any tv you buy before your return date is up.
I wish my self a ton of luck , and I wish you folks all my best thoughts and wishes for a perfect tv.
Just something I thought I would write , because as more of these are purchased , more and more calibration number will start to show up.
They will work find for that one set , however , those same numbers may not work on your set.
Just use with care and trust your own eyes !!
Have a great morning , and I will be back !!