Easter egg

Easter eggs are intentionally hidden messages or features included in a movie, video game, DVD, etc. Easter eggs in DVDs can often be found by an extra click to the right or left or going up in the menu instead of going down to select a choice, which will bring up a hidden feature. There are a total of three known Futurama DVDs with Easter Eggs included. They can be accesed by the Main Menu. They are special videos or images.

Easter Eggs in Futurama DVDs
DVD Releases with Easter Eggs.
 * Volume Three-Disc one.
 * Monster Robot Maniac Fun Collection-Al Gore Easter Egg.
 * The Beast with a Billion Backs-Old Farmer's Wikipedia Easter Egg.

More Information

 * Wikipedia article: