In a way, the flash animated series is a spiritual successor to The Adventures of Letterman from the original Electric Company. However, the stories are longer, and provide valuable lessons for the target audience. In another nod, WordGirl, hailing from another world, owes some of her inspiration to----wait for it----Superman and his cousin, Supergirl.
If the narrator sounds familiar, well, it's Chris Parnell (ex-Saturday Night Live), the voice behind Progressive Insurance's annoying talking Box.
Edit, 11/23/2020: The video has been deleted. The title card will have to suffice for now.