Supernatural Easter Egg - Ghostfacers Videos

Okay -- Go to "The Mythologies of Supernatural: From Heaven to Hell" featurette in the Special Features section.
In Heaven (Paradiso):
Scroll up and highlight "Angels and Archangels". Hit the right arrow. The clouds will be highlighted. Hit enter and Part I of Ghostfacers web video from "It's a Terrible Life" will play.

In Purgatory (Purgatorio):
Highlight "The Bonds of Limbo" then hit the left arrow. The doorway will be highlighted. Hit enter and see the Ghostfacers testing their safety goggles.
Highlight "Menu" then hit the left arrow, another doorway will be highlighted. Hit enter and learn GMA (Ghost Martial Arts) from the Ghostfacers.

In Hell (Inferno):
Highlight "The Sweet Song of Death" and hit the right button. A bar (or something that I can't distinguish) will be highlighted. Hit enter and Part II of the Ghostfacers web video from "It's a Terrible Life" will play.