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 Animation 

There is something very unique about south park.Because of the style of animation, it is actually possible to have an episode of south park in an .svg animation, which is a file format that allows for unlimited up-conversion of images and animation but only in a way of simple shapes,and since south park is already a somewhat brick style animation, you could theoretically up-convert it to high definition using the .svg format and it would look just like that was the normal resolution.  
That's true.  Also, computer episodes can readily be made available in smaller size files (such as .rm), instead of the much-larger .mpg, .avi, or .mpeg.  I think that's a big reason the show has garnered such a cult following on the internet. 17 "