Warning: This article contains SPOILERS for The Simpsons season 36, episode 1

Although he is often blamed for heralding the end of the show’s Golden Age,The Simpsonsseason 36, episode 1 brought back one of its most controversial supporting characters ever.The Simpsonshas been on the air for over 35 years and, in this time, its critical decline has been well documented. It is broadly agreed that the so-called Golden Age ofThe Simpsonsbegan around season 3 and ended before season 12, meaning 23 of the show’s seasons arrived after its peak. Despite this, recent years have seenYouTubecreators and critics likeVulture’s Jesse David Fox alike question whetherThe Simpsonsis good again.

Bart looking at the real Seymour Skinner and Agnes Skinner in front of a house in The Simpsons season 36 episode 1

Seasons 34 and 35 ofThe Simpsonsreceived markedly better reviews than the much-maligned seasons 30-33, so it was a surprise whenThe Simpsonsseason 36, episode 1 announced itselfas the series finale. In reality, “Bart’s Birthday” was the season premiere, but its elaborate self-parodic framing device presented the outing as an AI-generated finale for the long-running show. To this end, plenty of supporting stars from earlier in the show’s history returned forBart’s birthday in season 36 episode 1, including a controversial character whose original arrival is closely linked to the decline ofThe Simpsons.

How The Real Seymour Skinner Started The Simpsons' Decline Back In Season 9

The Principal And The Pauper Heralded Future Simpsons Problems

Martin Sheen’s Principal Skinner first appeared in season 9, episode 2, “The Principal and The Pauper,”where the Vietnam veteran returned to his hometown of Springfield and revealed that Principal Skinner was a fraud. This episode’s bizarre story saw Sheen’s no-nonsense veteran prove that the principal, whose real name was Armin Tanzarian, had assumed his identity when he thought that Skinner had died in the war. This revelation was almost as absurd as many ofThe Simsponsseason 36 episode 1’s outlandish twistsbut, surprisingly, it wasn’t retconned by the episode’s ending. Instead, the show found a novel solution.

The pointlessness of the episode’s circular plot and its odd tone left many long-time fans cold.

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To maintain the show’s status quo, the characters ofThe Simpsonsdecided en masse that they would send the real Skinner out of town, reinstate Armin Tanzanian as “Principal Skinner,” and never mention the episode’s events again. This audacious gag mocked the ways that sitcoms work around awkward plot twists, but not everyone was left laughing. The pointlessness of the episode’s circular plot and its odd tone left many long-time fans cold, and the outing’s zanier, more pointedly far-fetched writing garnered criticism. Many fans online still highlight this episode as the beginning of theend of the Golden Age ofThe Simpsons.

Why The Simpsons Brought Back The Real Skinner In Season 36

Skinner’s Return Proved Something Was Wrong In Springfield

It is no surprise that “Bart’s Birthday” brought back the real Seymour Skinner, as the entire episode was designed to mock the show’s unchanging status quo. Presented as a potential series finale, “Bart’s Birthday” saw Principal Skinner and Police Chief Wiggum leave Springfield, Milhouse move to Atlanta, Lisa get a scholarship to Juilliard, and Moe shut his famous tavern. These events, along with Bart finally turning eleven, proved the world of the series was finally, unavoidably changing. This turned out to be a fakeout and normality was reinstated, but Skinner’s return toThe Simpsonsreinforced the episode’s status quo disruption.