Harvey Birdman, Attorney at Law S01E09 - X, the Exterminator

X the Eliminator is sitting at home, having mostly forgotten that he was paid a million bucks to kill Birdman in 1968, when he sees Harvey in an ad for his law practice. X launches right back on his quest and, now posing as "X the Exterminator", confronts Harvey. And is devastated to discover that Harvey just doesn't remember him.