I can sort-of verify the blue shift.
I am using DVI input on my monitor, so it's not the usual ghosting that sometimes happens with poor VGA cabling/shielding.
Apologies for poor photograph but you can hopefully see what I mean.
This is a 320x200 screen on 800x600 output. Scanlines at 75%.
The monitor is cropping it and scaling it so it could be exaggerated a bit:
And with 1:1 pixel mode on the monitor, scanlines disabled:
It's more obvious towards the right where the camera has managed to focus on the surface of the monitor (see "V2" text).