Getting crisp pictures out of gaming machines on domestic TV's has always been a bit of a panacea for retro-gaming enthusiasts, from the point that you realise that tuning your TV into an RF-Channel actually produces the worst quality, lowest common denominator visuals you could imagine, to the realisation that sanctuary lies in upgraded cables via better transmission mediums. In the case of most 8 and 16-bit consoles, that nirvana was usually in an S-Video output.