Irvine face Falkirk in the clash to decide who gets the 50/50 trophy. Sophie McDonnell referees as contestants tackle the Rollometer, the Pulse, the Spike and the mighty Avalanche. Show more

Sophie McDonnell presents as Huddersfield and Inverness slug it out to decide which school takes home the 50/50 trophy. Show more

Sophie McDonnell presents the children's quiz show. The Spike, Rollometer, Cube, Pulse and Avalanche test the teams from Washington and Preston. There's also music from McFly. Show more

Sophie McDonnell presents as schools from Erskine and Linlithgow are put through their paces in the Spike, the Wire, the Elevator and the Avalanche. Show more

Sophie McDonnell presents the children's quiz show. It's Coatbridge versus Dunfermline undertaking the challenges of the Spike, Cube, Rollometer, Observator and Avalanche. Show more

Sophie McDonnell presents the children's quiz show. Penrith and Fife slug it out on the Spike, work out the Wire, and grab those gold snowflakes in the Avalanche. Show more

Sophie McDonnell presents the children's quiz show. Manchester plays Newcastle and must take on the Spike, Revolver, Cube, Pulse and Avalanche. Show more

Sophie McDonnell presents the children's quiz show. Teams from Queensferry and Stockton must take on the Spike, the Wire, the Fly, the Pulse and the Avalanche. Show more

Sophie McDonnell presents the quiz show that pits two randomly selected teams of 11 and 12 year-olds. It's a local derby as Leeds take on Bradford. Show more

Sophie McDonnell presents the children's quiz show. Stirling and Yoker must take on the Spike, Wire, Elevator and Avalanche. Show more

Sophie McDonnell referees as schools from Hartlepool and Peterhead compete in games including the electrifying Wire and the heart-stopping Pulse.

Sophie McDonnell presents more challenges, including the Spike, the Cube, the Pulse and the Avalanche. Schools from Aberdeen in Scotland and Moortown in Northern Ireland compete. Show more

Sophie McDonnell presents cool challenges including the Spike, the Cube, the Pulse and the Avalanche. Fifty from Carlisle tackle fifty from Peebles in the battle of the schools.

It's a clash of the Celts as Glasgow meet Edinburgh. Sophie McDonnell leads the teams through the Spike, the Revolve and the Avalanche, before one team takes away the 50/50 trophy. Show more

Dundee and Middlesbrough prepare for battle as Sophie McDonnell presents. The Spike, the Fly, the Wire and the Pulse will test the teams today. Show more

The quiz show that pits two randomly selected teams of 11- and 12-year-old schoolchildren from across the country against each other. Show more