Throughout the years, "Seinfeld" treated fans to an array of great episodes, but "The Finale" isn't one of them. The episode infamously ends with Jerry (Jerry Seinfeld), George (Jason Alexander), ...

Whether you love or hate the “Seinfeld” finale — and a lot of fans really hate it — the ninth and final season of the show about nothing was crucial for one big reason: the introduction of Festivus.