King Of The Hill "Pigmalion" Original Airing

You raise good points, I too am sceptical. Regardless I am investigating to try and find the original source of this information and ask them how they came to know about this scene.

"I first heard about the scene on the now defunct IMDb forums, A user claimed to have seen the scene, Another said to have seen it on a KOTH Reddit Thread discussing the Pigmalion Episode. A review of the episode by AlphaJay posted more people claimed to have seen the scene, The Episode itself was originally made for Season 5 but delayed for awhile due to the dark nature of the episode. It's likely that it was removed prior to airing. But to check to see if it is really true. We might need to search for international airings of the episode." - NickGemini12, creator of the lost media archive page.

So our likely first source is the defunct IMDb forums, either the start of the hoax or the source of the truth. Other than that this doesn't really prove much as people claim to have seen hoax scenes all the time either due to fake memories or to get attention (like the myth of the cut scene of Squidward turning into a snail). At least we are a step closer to the truth.

It's worth mentioning that I got into a minor YouTube comment argument about this (despite telling myself never again...) Basically one dude claims he's seen it, I claim he's remembering wrong. If you know anything about how memory works then you know how easy it is for your brain to create a completely fake memory once the idea is implanted in your head, and it seems just as real as any other. This happens ALL the time in stuff that you believe happened a certain way but actually didn't. It's what's accounted for things like people SWEARING they saw the fake spongebob scene only to be proven wrong. But the dude said he wasn't arguing with someone who didn't see the episode when it aired, and I wasn't really doing a good job proving my point, so, whatever, I gave up with that.

Also worth mentioning is that the person I was arguing with described the scene differently. Instead of Trip's bloody corpse being shown, the guy claims that all you saw was his legs dangling. I'd be more willing to believe that than the former description, since it sounds less like a creepypasta and more like an actual joke, but I still think it's fake. If this really aired I think there would be more evidence of discussion about it. The IMDb forums may be dead, but why is there nothing on forums like ToonZone? Even without the IMDb forums, why are there no mentions of this scene anywhere online written before 2016? Thinking logically about what happens to Trip - he gets skewered, ground up, and, as Peggy says, turned into a sausage. How would his body even be recognizable in any form to put on that meat hook? It just makes no sense, and I bet you anything it's a false memory based on people seeing those hooks and thinking something should be attached to them.

Other things of note:

-The IMDb forums for KotH are decently backed up from 2017-2015, but I couldn't find anything about this just from a cursory look. I did find a couple mentions of the episode (in the "most dramatic episodes" and "least favorite episodes" threads), but nothing mentioning this scene. If you want to take a look, go ahead: web.archive.org/web/20170215211520/http://www.imdb.com/title/tt0118375/board/threads/
-Another person within the youtube comment thread claims they saw the episode when it aired and they never saw any such scene.

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