Appearance:  "Space Pilot 300"

Few cartoons master the background gag the way Futurama does, from creators being animated into the show to obscure sci-fi puns decorating local haunts; but did you know they've made their own language?  More than one?

Appearing mostly in the background, the first language was nothing but a simple substitution cipher, seen above.  But the second, and I quote:

"Each symbol has a numerical value. To decode a message, the first symbol's value is translated directly into a character (0='A', 1='B', and so on). For the remaining letters, you subtract the previous symbol's numerical value. If the result is less than zero, you add 26. Then that number is converted into a character as before."

Sheesh.  Nerds.