The Gadget Show: Shop Smart, Save Money Season 4

Suzi Perry travels to Mexico to test a device for divers who can't swim, before trying out waterproof cameras in the Caribbean. Plus, tricks for taking perfect holiday photos, essential gadgets to use on vacation, and tips on finding bargains abroad.

Tom Dunmore tests the latest camcorders, and Jon Bentley investigates digital piracy. Jason Bradbury examines Wikipedia, investigating claims that it is an unreliable source of information, and Suzi Perry celebrates Meccano. Plus, converting music recorded on cassettes so it can be played on an MP3 player.

Jason Bradbury investigates Internet TV broadcasts and creates his own programme to transmit online. Jon Bentley tests out 3G mobile phones, and Suzi Perry compares the formats competing to be the successor to DVD when high-definition TV is launched

Jason Bradbury and Jon Bentley visit Europe's biggest consumer technology show Cebit, where they find computers that can detect the user's attention and clothes with built-in tracking devices. Pete Tong tries out the latest in digital music mixers designed to inspire bedroom DJs.

Jason Bradbury visits computer games design company Red Storm Entertainment as they work on their new releases, and Jon Bentley examines wireless digibox the `sky gnome'. Suzi Perry presents a celebration of the pinball machine, while Tom Dunmore showcases the latest personal video players.

Jon Bentley tests cameras by photographing wild animals in South Africa and Jason Bradbury investigates anti-theft devices. Suzi Perry celebrates a classic set of mixing decks before showcasing the latest version, while Tom Dunmore examines digital radios.

Jon Bentley, Jason Bradbury and Suzi Perry visit Sky's high definition television operation ahead of this summer's launch of the cinema-quality service and Tom Dunmore looks at digital cameras. Plus, Jason's guide to Bluetooth technology and the Dualit toaster goes head to head with its rivals.

Suzi Perry road-tests three mountain bikes, while Jon Bentley finds out if the iPod deserves its status as the biggest-selling MP3 player on the market. Tom Dunmore picks his favourite mobile phones, and Jason Bradbury visits the Isle of Man to discover a new breakthrough in telecommunications.

Featuring a laptop buyers' guide with Jason Bradbury, a laptops group test with Jon Bentley and Tom Dunmore's pick of the latest USB devices.

Jon Bentley reports on how easy it is for hackers to obtain personal information from old computers, Suzi Perry investigates gadget companies' efforts to make their products appeal to women, while Jason Bradbury tries to build a hovering skateboard for £150. Plus a look at the latest in speaker systems

Jason Bradbury investigates the future of communications with the aid of BT's research and development team, and meets futurologist Ian Pearson, who speculates on the likelihood of such innovations as TV screens implanted in contact lenses. Jon Bentley puts the most advanced torches on the market to the test and Suzi Perry discovers the history of the metal detector.

The team investigate the growth of online gambling, and discover some of the dangers it poses. Jason Bradbury finds out about `telepresence' - teleconferencing using virtual reality to recreate an environment, which has proven useful not just in business, but also to the police and surgeons. The new Bose Wave Music System CD player is also put to the test.

Jon Bentley showcases the latest photo-editing software and puts it to the test by recreating famous images - from the poster for The Shining to the 1966 England World Cup squad. Suzi Perry investigates the history of video game company Atari. Jason Bradbury tries to go a day without using any gadgets, and Tom Dunmore reviews the latest MP3 players on the market.