Originally Posted by
ApolloBoy
You can get RGB out of the SNES, Saturn and PSX using the same setup as you have listed for the Genesis+SCD+32X, no mods needed. You can perform RGB mods on the NES and N64 but with some caveats. Performing an RGB mod on the NES requires you replacing the PPU with an RGB-capable PPU that is fairly expensive and hard to find, and then you need to build an amplifier to make the RGB signals useable. For the N64, only early models can be modded and you need to build a small amplifier circuit as opposed to wiring up the RGB signals to the AV out without any extra components.