This was the first time in which the backgrounds had less shadows.
Beginning with this show, the production facilities were Cataland Films, (formerly known as That's A Rap, Inc.), and they've been in charge of the program ever since.
This was meant to be a season finale of sorts.
The music beat in this entire episode is very catchy and jingly.
Washer from the episode "What Does Blue Need" appears for a few seconds but never moves nor speaks.