In "That Sinking Feeling", Snap refrences earlier episode "Snap Out Of Water", where Snap goes into the real world.
This is the first episode to not end with a music video.
This is the first appearance of Drew Yerface.
Mo Skeeter of the Stingers ("Insect Aside") is voiced by series creator and songwriter Bill Burnett. Some of the members are voiced by music composer Guy Moon. Both even sang a song for the episode "There's Nothing Special About Me".
This episode features the guest artist of adult cartoonist Bill Plympton who animated all of Drew YerFace's 1950s-retro chalk drawings.
"That thing you drew" is a parody name of a movie "That thing you do!"