-The Mario hat in Nintendogs (Incase nobody saw)
-In the Simpsons, Skinner mentions "before ... or Super Mario Men..."
-Not nessesarilly Mario, but on "Two & 1/2 Men", Jake can be seen playing a DS (In fact, it was the B story of two episodes!). Unfourtunatly, he calls it a "Game Boy"
-In a game "Astrix and Oblix" (can't remember the name, based on a french comic) a group of people (Janitors, I think) all look like Mario and have a machine on their back that looks like FLUDD with exagerated features. Also seen is a man with blue hair holding a ring (Sonic), a man with no arms or legs (Rayman) and a Ghost from Pac-man painted on a ballon, along with other Pac-man references.