This episode started right into the dancing without introduction to this week's judges: Nigel Lythgoe, Mary Murphy and Brian Friedman.

This week's pairs danced together:

Musa and Natalie danced hip-hop, Ryan and Heidi performed the cha-cha, Ivan and Allison performed contemporary, Dmitry and Ashlee danced a pop routine, Marth and Travis performed the foxtrot, and Benji and Donyelle danced Broadway style.

Afterwards, voting was opened up to the audience.

Alton explains the sources of drinking water, its properties and dangers, and the popularity of bottled water.

The first of four semifinal rounds is featured. Two acts will move on to the finals - one chosen by celebrity judges David Hasselhoff, Brandy and Piers Morgan; the other by viewers. Regis Philbin hosts.

Adam and Jamie once again put movie myths to the test. Are Hollywood heists complete hocus pocus or can you really crack the tightest security systems in the world?



Part 1 of 2!

Jason Renshaw is a professional hit man who successfully murders the CEO of a prestigious toy company only to face the biggest fight of his life when a package from the toy company is delivered to his house with surprising, deadly contents.

Lonnie and Doris Freeman, an American couple honeymooning in London, go to a friend's house for dinner but end up stranded in the mysterious Crouch End district. The area is strangely abandoned except for some bikers and children, and the couple soon realize they are trapped in a place where the barriers between dimensions are weak... and they may be the next to be sucked in to somewhere else.

Fifteen new designers arrive to kick off Season 3! *Bradley Baumkirchner, *Robert Best, *Laura Bennett, *Malan Breton, *Bonnie Dominguez, *Stacey Estrella, *Katherine Gerdes, *Kayne Gillaspie, *Uli Herzner, *Alison Kelly, *Angela Keslar, *Michael Knight, *Vincent Libretti, *Keith Michael, *Jeffrey Sebelia. After a champagne toast, the challenges begin. In the first challenge, the source for design is the contents of each designer's Atlas apartment. Designers are given 15 minutes to raid their apartments, and they really raid. They may only use the contents of their own apartment-but they may use any of it (and none of things they brought with them). This really comes back to bite them later - when they are tired and drained after their first real full day of grueling work on the first challenge - when they come back ready to crash and are reminded of what they did to their apartments earlier in the day.

Blade seeks a contact which has information about House of Armaya, which conducts experiments upon vampires.

As the holiday season comes around, Lauren, Heidi, Jason and Jordan are ready to celebrate. However, things don't go so well. While at a New Year's Eve party Lauren and Jason have a big fight, causing Lauren to storm off with Heidi.

Tonight: Co-star and writer of the movie Little Man,, Shawn Wayans

Tonight Stephen welcomes editor in chief for U.S. News & World Report, Mort Zuckerman.

Explosive new evidence that overturns conventional theories about exposure to radiation. Following the nuclear disasters at Hiroshima and Chernobyl, it was assumed that such horrors could trigger cancerous diseases, but scientists reveal a changing attitude toward the phenomenon.