EDIT: In the original of this post, I suggested that the truly optimal connection for NES was S-Video, based on NES units that could use SNES cables. Having finally found such a unit, however, I regret to report that even this won't get you S-Video: while the replacement-model NES2 (and Famicom AV) both support SNES composite cables, S-Video cables won't work. You'll still get sound, but no video, so I think the S-Video pins must be missing on these models or something.
That said, the late-model NES2 and Famicom AV do have the advantage of being able to use the same composite cables from the NES all the way up through the Gamecube.
Complexity is not depth. Machismo is not maturity. Obsession is not dedication. Tedium is not challenge. Support gaming: support the Wii.
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There is much to hate about modern gaming. That is why I support the Wii.