On the [Main Menu] screen, there are three selections: [PLAY], [CHAPTER SELECTION] and [SPECIAL FEATURES]. Highlight any one of these and press [Down]. You will highlight something above it, either the MTV icon, the words "THE REAL WORLD" or "CHICAGO". Press [Enter], and you will see a different clip for each word.
MTV icon - Clips from a marathon phone-session with Tonya.

"THE REAL WORLD" - Joking at the haunted house.
"CHICAGO" - Cara and Anessa naked discussing videos.