hmm
you may be right. I think it must come down to the previously noted inability of the controllers to accurately pin down variable brightnes between 0 and 255. Coupled with viewing angle and distance.
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Bus-Tops The World's Largest (and only) Animated GIF Distro, Tue 31 Jan 2012, 20:23,
archived)
Does nyan cat work fine on the real screen, or do some of the values also turn out wrong?
Can I see it?
Or how about this version of the monkey animation:

I removed everything that isn't in the red channel. So now it's 8-bit, right?
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_Felix 's school of dance and occult sciences, Tue 31 Jan 2012, 20:38,
archived)
huzz and aaah!
I made some changes to the contollers settings and am getting much much better results, this is how the monkey gif now renders:

(
Bus-Tops The World's Largest (and only) Animated GIF Distro, Thu 2 Feb 2012, 11:34,
archived)