American Dad!: The Best Christmas Story Never

Animated series from the creator of Family Guy. Stan Smith works for the CIA and is constantly on the alert for terrorist activity. When an injunction prevents Langley Falls from lighting their Christmas tree, Stan blames the non-believers for ruining his favourite holiday. With Stan's holiday spirit at an all-time low, the Ghost of Christmas Past visits him and tries to show him the true meaning of Christmas. However, Stan is convinced that Christmas can be saved by changing the outcome of Vietnam, but finds that changing the past only dramatically changes the future.