In "Fraggle Babble", Mokey invokes The Solemn Fraggle Oath again, which was done several times in the live action series, starting with The Preachification of Convincing John (1983).
"The Radish Fairy" starts with the Fraggle Five rehearsing a play. In the foreground, a Fraggle with a mustache catches a worm and put it in a bag. Later, the same Fraggle is tugging on an extremely long worm, which turns out to be the nose of a large monster that grabs the Fraggle and puts him in a bag of his own. This Muppet Monster is known as 'Big V' and first appeared in the "The Glow-Worm" sketch which was performed on various variety shows in the 1960s.