Susan Calman presents the search to find the UK's smartest school. In this first heat Willowbrook from London take on Lybster from the Highlands. Who will make through to the quarter-finals?

In this second heat, Shears Green take on Potten End. Who will make it through to the quarter-finals?

In this heat, Glenfrome from Bristol take on Elsley from Middlesex. Who will make it through to the next stage of the competition?