told the "Seinfeld" producers about Festivus at a party and they thought it was too funny not to run with: "My loudmouth brother opens his yap about it at a party where the producers of 'Seinfeld ...

It’s all in the spirit of Festivus, a holiday introduced to popular culture during a Dec. 18, 1997, episode of “Seinfeld.” Weary of the rampant consumerism of Christmas, Frank Costanza ...