What are the greatest gadgets of all time? Is it the Walkman, a microwave, a computer game or something completely different? The team argue for their favourites as they countdown to number one.

In Sweden, Jon Bentley tests out 360-degree cameras, while Ortis Deeley quizzes the big players who populate Stockholm's answer to Silicon Valley.

Jon suggests ways to keep hackers at bay, Yue and Ortis investigate the latest 3-D printers and Jason gets on his tech-laden bike to race a Bentley Bentayga.

The gang run a fine-tooth comb through the dizzying world of dog grooming, Jon weighs up the merits of HDR TV and Ortis checks out some unreal hologram tech.

Can tech turn out a better wedding cake than Bake Off winner Mark Tilling? Jon Bentley and his tech testers check out the latest camping gear.

Amy and Jason take on landscaping pros the Benton Brothers, Jon trains his ear on a £100,000 turntable and Ortis tries out Call of Duty: Infinite Warfare.

Ortis and Jason hone their survival skills against Aldo Kane, Jon reviews photo apps, and Jason tries to create a device that can pass itself off as human.

Jason and Jon try to prove that virtual reality can be an accessible pastime, Amy samples a VR-enhanced dining experience, and Ortis explores the surface of Mars.

Ortis and Amy test the best ice cream-related gadgets, Ortis tries the latest in follow-me drone technology, and Jon gives three flagship smartphones a whirl.

The team put supposedly indestructible devices to the test.

Action-packed consumer series. Ortis and Jon showcase the year's best Christmas buys, from student-friendly gifts to those beyond the reach of all but millionaires. Plus, Jason runs the latest toys past discerning schoolchildren, and Amy shows some Dudley office workers how to party, Gadget Show-style.

Action-packed consumer series. Jason reveals how to cash in on the soaring retro market by flogging those not-so-current gizmos. Jon and Amy try to get more TV entertainment bang for their buck, and Ortis and Jon test brand new mid-range devices against their pre-loved premium equivalents.