Here’s the scene in the movie adaptation with Billy Crudup playing the guy in the comic here. I 100% recommend reading the Watchmen graphic novel (the only graphic novel on Time’s Top 100 Novels of All Time list), but definitely worth seeing this part in motion.
I’m taking a swing here but I’m gonna say it’s the episode Homer’s Barbershop Quartet. I think this is when Chief Wiggum is watching all the talk show hosts make fun of his attempt at a solo career after getting kicked out of The Be Sharps.