Alot of settings in Menu, Picture, change to ADV, and then it opens up alot of adjustments, all 6 color adjustment, edge enhancement, bright/contrast. I have mine set for more natural skin tones and not alot of "pop". I know what you are talking about with that greenish haze. I used the calibration settings for the 738 that were posted in here and the skin tint was greenish on lower light scenes.
I switched back to Natural setting, turning tint down to 27, color 33, brightness 28, contrast 58, color temp Warm. Looks pretty good for regular tv and 2D movies.
3D I turn it over to bright, temp setting cool for more "pop".
Plus there is more settings in the service menu: 2457, hit Video button and keep doing so to cycle through other options.
I initially used Geometry correction to get the screen close to perfect allignment, but reset it and honestly don't really notice the difference, picture seems to look better without it.
Overall, you have a great amount of user control.