'The Frond Files' (Season Four)
"Again, the fantasy life of the kids — being inside their heads for so long is really fun for us. Like, what is Gene's wildest fantasy like? And to see it be Fart School for the Gifted and to have that full-blown, two-minute song in the middle of it about farts was such a fun indulgence for us. We'll go back to that form now that we know what it's like to be there."