TV Guide National Geographic Channel Saturday

Bidders vie for an 18th-century flintlock, a four-barrel gun so complex and expensive to produce that only the wealthy could afford one, making such items highly desirable. Sean Rich and his fellow Lords also inspect a piece of Second World War memorabilia possibly used by couriers behind enemy lines, which if authentic could be valued at $18,000

An exploration of the events that led to the deaths of nine people on board a 747 jet bound for Auckland, New Zealand, in February 1989, after the plane's cargo door was torn off. The official inquiry cited human error as the cause of the accident, and only the dogged persistence of bereaved parents Kevin and Susan Campbell revealed the mechanical failing in a locking mechanism, which resulted in the death of their son Lee

Fuzz Townshend and Tim Shaw restore a Jaguar Mk2 that has been in its owner's family for 40 years, but which he has been unable to work on following an operation. Now, after sitting neglected in a garage for nearly two decades, the duo battle to start the Jag's engine and Tim has to get his hands dirty making parts

Documentary exploring the treasures found in Tutankhamun's tomb, featuring a look at the most spectacular objects, including a ceremonial dagger made of iron that was forged from a meteorite. Plus, a consideration of what such items reveal about the boy king's reign

Examining the crash-landing in the Hudson River of US Airways Flight 1549 in January 2009, which occurred when the aeroplane collided with a flock of birds and its engines stopped