Here are basic measurements with the scope, please orient me in order to get better information. All images are available in full size if you click teh link and then the image at the site.
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PC Engine Duo images:
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Banding:
Composite video as sync @ line 80
Notice that the signal is slightly curved, was about the only difference I noticed.
Close up of the same line:
FFT of the full line:
Of course this is still composite video, a 3.6 Mhz dominant signal
Composite video in yellow vs Green channel in blue:
Closeup of the same line green vs composite video:
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TG-16 photos
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Composite video as sync:
TG-16 Green vs composite:
I expected less noise in the TG-16, and it seems to be more... unless the noise eliminates teh banding, I don't understand these result.