Mervin

Marvin appears in a Sesame Street News Flash sketch based around the nursery rhyme "Jack and Jill."

Jack is about to trudge up the hill, but forgets who he needs to bring along with him. All he rhymes is their name rhymes with "hill." Mervin offers his services, even reciting a bit of how their new nursery rhyme would go. However, Jack and Kermit turn him away, pointing out his name doesn't rhyme. When Jill declines going up the hill anymore, Jack asks around for a new partner. Mervin re-appears, now deciding he won't go up, not having realized about the "tumbling after" part, leaving Kermit as Jack's unwitting partner.