_,,,^..^,,,_ said:
...it seems that I'm forced not only to color regrading the movie, but also to capture and sync the laserdisc PCM audio... OK, if I'm forced to... (^^,)
I doubt a simple regrading will do it. If you look at this shot:
That's not just a color timing difference; those trees on the right have had the green leaves digitally changed to bright orange.