The return of the science programme with a difference, featuring some of the most inventive, original, and ridiculous technology. This week, Angela Lamont travels to Florida to take a dip with the only scuba diving dog in the world, while Jez Nelson and Sally Gray make a return trip to Tokyo to catch up with the latest creations from Chindogu, the Useless Invention Society.
(Repeated tomorrow at 8.05am on BBC2)