Bear Grylls recalls his Top 25 "Man Vs. Wild" moments.

Featured: chains; bagels; vinyl records.

Unassuming Canadians enter the "Cash Cab" as simple passengers taking a normal taxi ride, only to be shocked when they discover that they're instant contestants on Discovery Channel's innovative science-themed game show; host Adam Growe.

RATED 14+. Shortly after take-off from Taipei, a China Airlines 747 disappears from radar; a rescue mission finds all 225 passengers and crew dead; investigators are stumped until they uncover massive damage hidden by a tiny repair made 20 years earlier.

Average guy Steve climbs aboard a monster truck to learn how to be a real monster truck driver; he learns everything from how to get into a truck, to how to brake and turn.