The Simpsons S20 E19 Waverly Hills 9-0-2-1-D'oh

"Just a product of society that's lost its good manners."

When Marge learns Springfield Elementary is the worst school in the state, she and Homer rent an apartment in the upscale Waverly Hills school district so Bart and Lisa can attend a better school. Meanwhile, Homer moves into the rented Waverly Hills apartment and gets used to the bachelor lifestyle.