got this from the AVS forum
http://www.avsforum.com/t/1398113/official-samsung-unxxeh5000-unxxeh5050-owners-thread/120#post_22227521--------------
Played a lot more with White Balance and Colour Tone, and optimized the picture to the max level possible for this TV and for me.
For a dark (or very dark) room/environment, and especially for Movies and Games this is the perfect picture for me, and the best possible for this TV (Firmware 1018.1, Model UE40EH5000W):
Picture Mode: Standard
BACKLIGHT 17
CONTRAST 100
BRIGTHNESS 45
SHARPNESS 5 (30 for Italian DDT-TV)
COLOR 35
TINT 49/51
Screen Adjustment
PICTURE SIZE: Fit to Screen (Auto-Wide for DDT-TV)
Advanced Settings
BLACK TONE: Off
DYNAMIC CONTRAST: Off
SHADOW DETAIL: 0
GAMMA: -1
EXPERT PATTERN: 0
RGB ONLY MODE: Off
COLOUR SPACE: Native
WHITE BALANCE MENU:
R-Offset 25, G-Offset 25, B-Offset 25
R-Gain 0, G-Gain 25, B-Gain 25
FLESH TONE: 0
EDGE ENHANCEMENT: Off
MOTION LIGHTING: Off
LED MOTION PLUS: Off
Picture Options
COLOUR TONE: Warm 2
DIGITAL NOISE FILTER: Off
MPEG NOISE FILTER: Off
HDMI BLACK LEVEL: Low
FILM MODE: Off (Auto2 on Italian DDT-TV)
AUTO MOTION PLUS: Off
Gaming Mode: Off
And with these calibrated settings, configure your Xbox 360 Display Settings like this:
RESOLUTION: 1080p (Say Yes to 50Hz too)
REFERENCE LEVEL: Standard
HDMI COLOR SPACE: RGB
AUTOSCAN DISPLAY SETTINGS: Enabled
SCREEN SAVER: Yes
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