In his 30-year career as an innovator and entrepreneur, Clive Sinclair has dazzled the public with a stream of new electronic inventions. His was the first pocket calculator, the first digital watch and the first low-cost home computer. He's had huge successes and catastrophic disasters, like the C5 electric car, which was widely criticised for being unsafe. He is now redesigning the bicycle, has a personal telephone about to come out, and is involved in satellite television. What is the secret of his mental fertility? And why does he find it difficult to hold on to success?

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(Ceefax subtitles)