Oz color difference

[Electronic M]

I recall being at nicks (likely during the color proto-CRT test) and hearing that a while back OZ had been remastered with the original technicolor footage(I seem to recall that this footage had one film strip per-primary like color TV), and that the older tapes and discs of it were copied from lower quality film and the color looked lousy in comparison.

I could have some details wrong from my recall, but I think the difference is the recordings the sets are playing.