That Smarts is the second segment of the third episode of Pinky and the Brain.
Plot[]
Brain comes to the realization that Pinky is the one getting in the way with his plans for world domination. Using a machine, he successfully transforms Pinky into a genius. Brain finally thinks he will have success, but Pinky keeps pointing out the problems. Worst of all, Pinky thinks he's found the real problem- Brain.