Yes! Harvey Kneeslapper also appeared in a season 3 street scene (episode 359), as well as a song called "Tell a Joke" (season 7). As a kid, I used to think Harvey was a riot...now, not so much. Apparently the writers and Harvey's own performer (Frank Oz) didn't dig the repetitive shtick or the boisterous laughter, so Harvey became a member of the "Dead Muppets' Society."