Rediscovered a Teletubbies coloring book stashed away in a closet and naturally had to share a couple pages. According to the back, the format is to have every other page already colored so that children can add their own special touches. And then randomly they pre-colored a few items on the otherwise blank pages. Interesting concept.
At this point I find it's better not to think too deeply about why the Teletubbies are the way they are. It's much better to take them at face value than to ponder why Tinky Winky is described as "a sweet, technological baby with a magic bag."