The first in a new seven-part series in which Katy Hill and clockwork-radio creator Trevor Baylis test three new
British inventions before a studio audience, who vote on which is the most effective. This week they demonstrate a halogen-powered kettle, a bike that shines in the dark and a double-decker buggy that carries a baby and a toddler. Producer Catherine Mabb ; Series producer Alison Gregory
Repeated with signing at 3.25am