Video color saturation after telecine

[90sTV]

I'm curious as to whether, after telecine, the video before color correction tends to be more or less saturated than the final product?

[hello_hello]

What colour correction are you referring to? I assume it's the combination of DGIndex and ColorMatrix, but 99.9999999999999% of the time it's probably doing nothing.

The difference is rec.601 colorimetry (SD) vs rec.709 (HD). If it's wrong reds can look a bit darker and blue and green a bit brighter, or the other way around red can look a bit more orange and blur and green get darker, but the difference is generally pretty subtle.

To see the difference try to find a scene with as much red as possible as it tends to be more noticeable.
ColorMatrix(mode="Rec.709->Rec.601", clamp=0)
or
ColorMatrix(mode="Rec.601->Rec.709", clamp=0)

If that's not what you're referring to, I'm not sure what you mean. Telecine shouldn't effect the saturation.