http://www.youtube.com/watch?v=q-C0k9mvi_Y
I saw this movie "the projectionist" the other day. It was pretty good, based on the movie-saturated imagination of a projectionist. It's clever and enjoyable, but probably most notable for being the film debut of rodney Dangerfield.
Anyway, an bit of an episode of this cartoon was featured. When the kid talks it makes a "boing!" sound, so the parents bring him to a speech therapist.
And the man who created the story for this, a certain Theodore Geisel, who perhaps is better known under his pen name, Dr. Seuss.