Stephen takes a look at how gadgets can make shopping and cooking so much easier and far more entertaining. He escorts the world's only driverless shopping trolley around the supermarket, tests high-end barbecues and tries out an array of fancy kitchen gadgets as he prepares to host a spectacular dinner party for his friends Derren Brown, Carol Vorderman and Jo Brand.

• Stephen Fry
• Richard Ayoade
• Hugh Dennis