Can someone let me see what Never Twice the Same Color (NTSC) do mean?

[anonymoustly]

with pictures? thanks,

One PAL onother NTSC. (not from real medium, only one to ilustrate, however a real medium is possible)

[Skiller]

It's about the inherent predisposition for hue errors in analog NTSC broadcast. It is due to a lack of hiding color subcarrier phase errors, which may occur in analog broadcast (especially over the air). PAL has a means of cancelling out these phase errors, thus rendering a tint control on a TV set superfluous, as the tint is always correct.

As a result skin tones are either biased towards green, or towards magenta (Never Twice the Same...), whereas the middle between the two would yield natural skin tones.

Have a look here for an example: http://www.avartifactatlas.com/artifacts/subcarrier_phase_error.html