I have very recently bought myself a Samsung UE48H6400 tv, of which I am VERY impressed with.
I have calibrated the greyscale myself using the eye one sensor and perhaps some people may be interested in the results :
Select MOVIE mode with WARM 2 for starters.
Turn off all extra processing (contrast enhance etc)
Backlight : 17
Contrast : 95
Brightness : 46
Sharpness : 0 (Can go up to 5 if you like, from the results I have seen)
Colour : 50
Gamma : -2
White Balance 2 point
10% R+34 G0 B+25
20% R+32 G0 B+36
30% R+25 G0 B+36
40% R+13 G0 B+43
50% R+9 G0 B+45
60% R+9 G0 B+43
70% R+8 G0 B+34
80% R+5 G0 B+32
90% R+7 G0 B+38
100% R+2 G0 B+34
As you can see, Green tracks pretty much perfectly in MOVIE mode Warm 2. Blue however is WAY off and red starts bad but comes together. Generally speaking you should calibrate your own tv, not just copy ones like I have posted. In this case though, if you you're not going down a calibration route, I probably would recommend trying these settings as blue is so far out on mine (And so I suspect that is 'generally' how all the tvs will be)
Gamma and brightness are generally down to where people have their tvs. These settings are for a little above all out dark. (Very easy for anyone to calibrate)
If anyone is interested, I have also just attempted to calibrate the 3D mode. However, the sensor readings were jumping around all the time, and it will only calibrate in Movie mode to a 2 point setting. Basically I found that without calibration, RED was way out, but with calibration I got most points fluctuating within +/- 5 (Much closer than it was).
The setup wasn't the best either as I taped the glasses to the sensor and the sensors not quite as close to the screen as I would have liked. That said, I am positive its far better than it was.
I hope someone finds these settings useful :)