In addition to calibrating Red, Green and Blue for a correct grayscale balance (6500K), there are a number of other settings that come into play. Typically Contrast and Brightness (white balance and black balance), need to be done first. Color saturation and gamma also need adjustment.
Settings for measurements (default values are in parenthesis):
All other settings at default.
Ed. Note: When setting the brightness, it's always a tough call between the two closest settings (viewing black bars). Mike favors the higher Brightness number (delivers maximum shadow detail). I favor best blacks, so I'll be one number lower, give up the slightest amount of shadow detail in exchange for the blacker black. For example, above, Mike has 1 as the setting for Brightness in Film, User, etc. I prefer to choose 0 as the better choice. I found the jump from 0 to 1, and 1 to 2, to be significant. As I mentioned elsewhere, the controls could be a bit finer. We don't need to have a +20. A more precise contrast / black level setup could have been accomplished if, for example, there were 3 steps between 0 and 1, three more between 1 and 2...