"Even if after all that practice, I know the ropes are perfectly measured at exactly 10 minus 4.5 feet, or 167.64 centimeters, and that the countdown is precisely 3 seconds. Without seeing the math, I'm useless!"
This is the second episode in which the Magic School Bus does not transform at all. The first was "Under Construction".
Three members of Ralphie's family (Aunt Tennelli, Teresina, and Tony) are revealed in this episode. They are the Flying Tennellis.
Oddly enough, just like in other episodes, the class's parents are a part of the audience even though the circus is in Budapest, Hungary.
Martin Short, who played the Cat in the Hat on the fellow PBS Kids series Dr. Seuss' The Cat in the Hat Knows a Lot About That! and Kirk Kirkendall in Hoodwinked Too!: Hood vs. Evil, is one of the guest stars in this episode. He voiced Tony Tennelli.
