Simpsons Season 14, Episode 4: Large Marge

Thinking Homer does not find her attractive anymore, Marge goes to the hospital to get liposuction, but ends up with breast implants meant for Mayor Quimby's female assistant. Meanwhile, Bart and Milhouse accidentally get Krusty in trouble after imitating a stunt shown on a 1960s episode of Batman featuring Krusty as a Joker/Riddler-esque villain.