Sorry for the delay in replying, but I just saw that this party is still jumpin'! :)

@ larkofam

Thanks! I use a standard paint program for all my proof-of-concept tests. The process is exactly as described above. Those tests can be replicated, hopefully, in Avisynth (freeware) for video processing. If Avisynth's built-in processes don't handle it, usually a 3rd-party plug-in (also free) will. I've never gone that far with the above Disney's Zorro test ... yet.

@ jedi_jra & colorizedfan

BTW, those are excellent lists of colorizations! I'm green with envy!

@ larkofam & jerryshadoe & Space Hunter M

I'll try to work up an Avisynth script on still pictures (which would work the same as on video streams).

@ TV's Frink

I know, I know ... I have the same problem with SilverWook's TV alert!

@ SilverWook

Thanks for the broadcast heads-up! Unfortunately ... I don't get it (literally).

I thought Disney had put this "back into the vault" years ago. I hope someone's saving it all ...

"We're only gonna get one chance, Derebridge. That thing won't be back for another 76 years, and we'll both be dead. We have to take a look now."

-Lifeforce (1985)