|A pet peeve if I may....the correct control names are Hue ( not tint ) and Saturation ( Color )
While manufacturers often use both tint and hue terminology, I do believe the absolute correct term is Phase, hardly used at all if ever on consumer monitors but nearly always on professional gear like processor amps. You see, this control actually shifts the phase angle of the color sub carrier and will give the color a shift range from magenta to green. These two colors posess nearly opposite vector angles. It has no affect in shifting from true red to true blue.
Ray- To properly use the NTSC75 or SMPTE test charts for adjusting the saturation and phase as well as the brightness and contrast one needs a monitor capable of "blue gun only" setting. Either that or get half axxed results with a blue glass that you look at the monitor's color bars with. If you know what you are doing you can set the monitor up, but more accurate results are obtained with SMPTE bars. I don't know which HBO is using lately. Most broadcasts do use the SMPTE bars.