The Great Egg Race - The Robot Piano Player

Singer-songwriter Peter Skellern is the guest judge this week as the teams try to create a robotic pianist that is capable of playing a tune.

Peter Skellern's 1972 hit 'You're a Lady' reached number three in the UK Top 40. He also worked on Radio 4's 'Stop the Week', for which he composed topical songs about that week's news.