The eight kids have the same personalities throughout the series: PHOEBE: kind hearted, ARNOLD: over thinker, WANDA: adventurer, KEESHA: observer, TIM: artist, CARLOS: comedien, DOROTHY ANN: bookworm, RALPHIE: athlete
The episode Kicks Up A Storm shows the final appearance of the female producer as she wasn't a popular character.
The child actors who voiced the students as well as many other voice actors were recorded in Toronto, whereas Lily Tomlin was recorded in Los Angeles along side the special guest stars and Malcolm-Jamal Warner recorded in New York, so the other voice actors never got to meet them.
Danny Tamberelli (Arnold) provided the voice of Ralphie for two lines in the episode Makes A Stink. Also, in the episode Getting Energized, Maia Filar (Phoebe's voice) can be heard on Dorothy Ann when falling into the river.
The theme song was performed by Little Richard.