A Muppets Tonight episode had Gonzo book the Smashing Pumpkins for the show... only for it to turn out to just be Big Mean Carl smashing sentient, singing pumpkins.
House of Mouse: One of Huey, Dewey and Louie's alternating names for the house band is The Splashing Pumpkins.
The Simpsons: In "Homerpalooza", The Smashing Pumpkins are a featured act along with Homer at Hullabalooza. Homer later recalls meeting them in "Homer's Enemy".