Seinfeld is an incredibly influential sitcom, and one big way in which the show was ahead of its time is superhero references. Long before The Big Bang Theory made loving comic book heroes its characters' personalities, Seinfeld featured a steady stream of DC Comics references due to Jerry's love for Superman. Fans can now see all of Seinfeld's Superman references on Netflix, assuming they haven't been cropped out.

Jerry's knowledge helped make references to characters like Bizarro mainstream years before the superhero media renaissance. His enthusiastic comic book fandom wasn't exactly shared by the rest of the core cast. That, however, doesn't mean he was the only source for comic book references. A classic DC Comic Easter Egg was found in George Costanza's bedroom.

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In "The Fix Up," the 16th episode of Seinfeld's 3rd season, Jerry and Elaine decide to play matchmakers for the seemingly hopeless romantic George. The pair sets George up with one of Elaine's friends, Cynthia. Cynthia and George initially hit it off, but an awkward hookup in George's kitchen puts an end to the budding relationship. Their falling out then leads to friction between Jerry and Elaine.

During a conversation between Jerry and George, a Justice League poster can be seen above George's bed. Attention is never drawn to the poster by any of the characters, but the reference sticks out to longtime DC Comics fans. Reddit user imdoctordoom is one of the fans who spotted the poster, drawing attention to the scene via Imgur.

ThImgurters features a beloved incarnation of DC's flagship team from the Bronze Age, during their Satellite Era. Its large roster included the "Big Seven" founding members, longtime leaguers like Green Arrow and Black Canary, and newcomers like Firestorm and Zatanna. This version of the team starred in the classic Justice League of America #200, considered to be the best Justice League story of its era.

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The poster is drawn by Jose Luis Garcia-Lopez, the man whose art was literally the standard for DC Comics for decades. As the artist who drew DC's style guides, Garcia-Lopez's versions of DC's entire pantheon served as the reference book for officially licensed merchandise. Because they were found on everything from Underoos to the Super Powers Collection action figures, Garcia-Lopez is the definitive DC artist to generations of fans.

The poster is an odd fit for George's bedroom. Unlike Jerry, he's never shown much affection for the DC Universe. The episode doesn't take place at a time when George was living with his parents, so it's not a case of him not altering his childhood bedroom because he's temporarily between apartments. There are many possible reasons why George might hang a Justice League poster in his bedroom. He could be a less vocal fanboy than Jerry who has a particular fondness for The Satellite Era or Garcia-Lopez's art. The poster may have also been a gift from Jerry that George felt obligated to hang.

If you'd like to follow George's lead and hang the poster on your bedroom wall, it's not hard to find. It's currently in stock at Walmart, which offers and laminated versions. There are also eBay listings for a Super Powers branded version of the print and a signed copy. It's also worth checking with your local comic shops to see if they might have a copy. No matter where you pick it up, hanging this poster is one of the few ways anyone should emulate George.

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