The choice of color for the Simpsons characters was very strategic, actually. As soon as Matt Groening, creator of The Simpsons, was given a drawing of the characters in yellow by an animator, he knew it was perfect.
The idea was that whenever someone was flipping through the channels, they would automatically know The Simpsons was on when they saw the yellow bodies flash by. Speaking of characters, all of them are a digit short of a full, human-like hand. Actually, the only character to ever have five fingers on a hand was God.
Until 1998, the 8 main voice actors for The Simpsons received $30,000 per episode. From 1998 until 2004 they made $125,000 per episode. Today, they receive $400,000 per episode. The theme song was created by Danny Elfman in 1989. He composed the now famous song in just two days time. That’s not too bad for a two day job.