I can only find the clip on paysites. I intend to download it, but can't post a link 'cuz you would need to pay for it.
As I recall, the original "uvula" gag was on the Tonight Show With Johnny Carson. The NBC censors bleeped it, he pointed out that it wasn't what they thought it was, and so he would use the word at every opportunity. That's probably why NBC's website does not have that SNK sketch.