where to watch national lampoons christmas vacation

*The elves all laugh and nod their heads in agreement.* "Yes, that's a classic! It's a must-watch every Christmas season. We have a full collection of holiday movies in the North Pole theater, including 'A Christmas Story,' 'Home Alone,' and 'Elf.' And of course, we have 'National Lampoon's Christmas Vacation' right at the top of the list. It's a tradition to watch it together every year."