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Orange and Cyan would be right for a 2-color system. I was thinking maybe green in one lense and red+blue in the other.

The red field pulse was in the CBS system, just a matter of whether the receiver paid attention to it. I cna't believe that the recievers built by Zenith and used in demonstrations of medical color TV didn't have automatic phasing.

Yep; there's an image somewhere of the camera, internal and external, with the colour wheel. Someone on here mentioned it a while back...

I have enough problems with flicker (due to my nystagmus) - I can see screen flicker and/or colour banding at 72 hz on many monitors, and our PAL TVs REALLY show up flicker on, for example, chrome trim on cars (a REALLY bad example is Robin Williams' car in "Mrs Doubtfire"!). That said, I'd rather have flicker at 50 Hz than digital nasties and smears at 100 Hz (I've still not seen a 100 Hz PAL TV I could live with - they all look crap even if they ARE stable!).

BTW - is it my imagination, or did the NTSC Region 1 version of "Blair witch project" NOT have the 3:2 pulldown effect on the hi-8 sourced bits, or am I imagining it (was very drunk when I watched it)? I *loathe* 3:2 pulldown, but I *really loathe* the BBFC, so would rather import a US film that's NOT been hacked with a chainsaw than get a 4% fast, censored to hell British cut of a film. "Enter the dragon" springs to mind - I got the NTSC version as I'd never seen the nunchuckers (sp?) etc - Nanny State Britain is so bad that even the "Teenage mutant ninja turtles" had to be renamed to "Teenage mutant hero turtles" (no, I'm NOT joking!). "Enter the dragon" is now out on UK DVD with the full scenes intact, but it took 3 years...