Question: Waylon Smithers appeared an episode of The Simpsons that originally aired on January 21, 1990, and that has Homer promoted to what position?
Sentence (from "Flaming Moe"): It follows the efforts of Waylon Smithers to earn Mr. Burns' respect by turning Moe's Tavern into a successful gay bar, leading Moe to become more popular as a gay man than Smithers.
Relevant evidence: No