... using S-video isn't as much of a step up as it is for other game consoles. Oh yes, here's a link to diagram for S-video on later Genesis hardware: http://www.gamesx.com/rgbadd/genesis3.htm The process for getting S-video on a Mark I Genesis is a little more involved, but thankfully it's really well understood. Incidentally, it's the same mod used for the Neo Geo home console: ...