[["Stiller's Frank Costanza explained and celebrated Festivus, which he created as a reaction to the commercialization of Christmas, in \"The Strike,\" a \"Seinfeld\" episode that aired Dec. 18, 1997, in the hit sitcom's ninth and final season", 254.0], ["The Strike. Season 9, Episode 10", 236.0], ["Festivus, the holiday invented by George\u2019s father to replace Christmas, is in an episode called The Strike in Seinfeld Season 9, episode 10. ", 209.0], ["Season nine The Strike", 116.0]]
what seinfeld episode is festivus
film and tv,sitcom