American Dad! Season 2 Episode 9

When Langley Falls is prevented from lighting their Christmas Tree, and the "war on Christmas" hits the local mall, Stan sees his favorite holiday ruined. That night, Stan is visited by the Ghost of Christmas Past, who has come to show him the true meaning of Christmas. However, Stan escapes when the Ghost of Christmas Past takes him back to the seventies, and he becomes convinced that killing Jane Fonda will save Christmas.