In a Christmas special, surprise celebrity guests reveal what would make their ideal Christmas present of the future - like a teleportation machine or the calorie-free Christmas dinner. How far can science go towards turning their fantasies into reality?

Tomorrow's World heads for the high street to find out what this year's shoppers think of next year's gifts, including a plain-talking teddy and a video game controlled by karate kicks. Also, is the disposable age drawing to a close?

Presented by Kate Bellingham, Carmen Pryce, Judith Hann and Howard Stableford.