Arthur's Perfect Christmas
December 24, 2000
In this Christmas TV special, Muffy, during a line in a song, describes that presents mean nothing if her friend Francine isn't by her side. As she sang this, Francine appears on a screen dresses as Mario in a Super Mario Bros.-inspired game. By the end of a level she's hit by a bunch of rolling Barrels, a possible incidental reference to Donkey Kong.
Cookie Jar Entertainment, that created the Arthur TV show, doesn't hold any right over Nintendo's Mario, but they only included minor references.