[john_other_john]

Many films originally printed in color for theaters had their delicate color internegatives lost or destroyed or decayed. Often only archive mono prints manages to survive, because of better or more stable chemistry.

Ted Turner wasn't all crazy. He had history on his side, for some movies. But then he also got a huge upsurge in viewing, of the films he colorized. I think there's fair argument that more distribution, more viewing, of a art form, is a good thing.

Also, what's dismissed as SD is so often truly awful SD, not clean and heavily compressed.

Like the commented above, I often wish for just a decent SD copy. Really well transferred DVDs are pretty good to watch.