Originally Posted by
Wirestone
"When ONLY the S-VIDEO cable is plugged in NES games DO NOT DISPLAY ON SCREEN, so you need to either have both in and deal with the strange NES resolution, or unplug the S-VIDEO on both ends when using the NES side of the system. (SEE VIDEO OUTPUT COMPARISON BELOW)"
Frankie, it's interesting you say that. I also have a Retro Duo (I contributed to the earlier thread) and I tried this just this evening. Used only the S-video cables on each side. The NES games still displayed on the screen.
And I'm still getting a drop in the quality of the composite signal on the SNES. NES looks great on composite, crappy on S-video. The opposite for SNES. I'm heartened to see that someone else has duplicated my experience with the NES signal -- now what about the SNES one?