Legendary US sitcom Seinfeld has many great moments, but one of the funniest was when George revealed that, instead of Christmas, he celebrates Festivus.
This occurred in an episode called The Strike, when Elaine reads a card from George's father wishing him a 'Happy Festivus', referring to a holiday that his father invented. What followed was one of the most hilarious sitcom episodes in TV history.
Here's George's dad - the great Jerry Stiller, father of Ben - in full flow:
