One Family Guy episode has Peter shoo'ing Jawas away from his car, but I can't remember which one. The newest season's first episode also opened with a complete Star Wars throne room celebration recreation. There are also two scenes throughout the series where Ben is instructing Luke on the Force.
That one was just on the other day actually. The 90 minute episode centered on Stewie. It's actually Stewie doing the shooing when he's after his "real father". There was an episode that spoofed "Police Squad" that had a trench run in it, and an episode that closed with the Yavin Ceremony scene.
South Park had an episode that actually spoofed ALL the Lucas/Spielberg films at once! It was the one about the "Special Editions" There's gold in that one.