Overview: Going out with a bang – the lazy men cook xmas dinner. Our black box takes on a scrapyard crusher. Viewer Dan Crossley gets a surprise visit from the Brainiac babes. John Fashanu has trouble when it comes to inhaling helium. Can you catch a cold from being cold. Jon Tickle builds his own home cinema projection system. We find out how long it takes from being drunk to being sober. The conclusion of Tall v Small. And when science goes bad - the bits you don’t normally see.