Component cables (red/green/blue for video plus red/white for audio) will output an image that has no noticeable degradation whatsoever, so 1x IR + no other enhancements will look pretty much identical. If you're talking about the composite cables (or, more accurately, RCA connectors; yellow for video, red/white for audio) the Wii comes with, there's currently no way to emulate the signal degradation/artifacts/fuzziness/free AA those bring. You can try writing your own post-processing shader for the OpenGL backend if you know GLSL.
<@skid_au> fishing resort is still broken: http://i.imgur.com/dvPiQKg.png
<@neobrain> dafuq
<+JMC47> no dude, you're just holding the postcard upside down
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<@Lioncash> pauldachz in charge of shitposting :^)
<@neobrain> dafuq
<+JMC47> no dude, you're just holding the postcard upside down
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<@Lioncash> pauldachz in charge of shitposting :^)