On Sept. 16, 1992, “Seinfeld” introduced one of the most memorable concepts in television history when Jerry Seinfeld and George Costanza pitched NBC on a sitcom that was, essentially, about nothing.

The idea appeared in an episode titled “The Pitch,” which aired as part of the show’s fourth season. In the episode, Jerry and George are invited to pitch a television series to NBC. George comes up with the idea of creating a show about their everyday lives — with no traditional plot or premise.

The fictional pitch became one of the defining jokes of “Seinfeld,” a show that would go on to become one of television’s most recognizable sitcoms.

The episode aired on Sept. 16, 1992, making the date an especially fitting one for fans of the show — and for anyone who has ever wondered how a show about nothing could become such a big deal.