From Season 4. I remember catching this episode when it aired on HBO way back in 1992, and it definitely holds much nostalgia for me. A very good episode, with a completely contemptible and loathesome antagonist with Helen and a very gruesome, disturbing ending. I find this episode is among the most disturbing of the series and genuinely leaves you feeling very uncomfortable after having watched it. One thing about it that stands out is that it feels like something that could really happen in real-life, unlike typical EC fare like zombies, vampires, werewolves, ghouls, etc. which although entertaining and a trademark of EC Horror ultimately isn't realistic, unlike the scenario depicted in this story.
The entire concept of an autopsy pageant is incredibly gruesome and disturbing, and seems like something that could really happen and probably occurs in dark corners of the world. Especially with the likes of the dark web where co-ordinating such a sick event would likely be done.