Susan Calman hosts as two celebrity teams take on the challenge of answering festive Top Class question.
Quiz show to find the UK's smartest school. In this heat, Hayshead from Angus take on Little Sutton Primary School from the West Midlands. Show more
Susan Calman presents the search to find the UK's smartest school. Seaside Primary from West Sussex take on The Queen's School from Cheshire. Show more
Susan Calman presents the search to find the UK's smartest school. In this quarter-final Stanley take on Cedar Park. Show more
Quiz show. In this quarter-final, Delamere Church of England Academy from Cheshire take on Glengarnock Primary School from Ayrshire. Show more
Search to find the Uk's smartest school. In this first round heat Cardwell take on Stanley Road. Who will make it through to the quarter-finals? Presented by Susan Calman. Show more
Susan Calman presents the search to find the UK's smartest school. In this first-round heat, Valley Gardens take on Cedar Park. Show more
Susan Calman presents the search to find the UK's smartest school. In this quarter-final Overchurch take on Y Bont Faen. Show more
Two teams of CBBC stars battle it out, but which team will be crowned Top Class? Presented by Susan Calman.
In Didcot, Peter Snow is joined by train lovers, collectors and enthusiasts across Britain. Peter challenges Ian McMillan to write a poem about the Flying Scotsman. Show more
Peter Snow and Dr Hannah Fry present live from Didcot Railway Centre, where the focus is on diesel locomotives, from Class 37s to the Intercity 125. Show more
Dr Hannah Fry and Peter Snow look towards the future of rail travel. Hannah explores how the timetables work and whether they can squeeze in extra capacity in the future. Show more
Two families battle it out in a range of games. Jodie's team from County Armagh go up against Eleanor's team from north London. Show more
Two families battle it out in a range of games. Lily's team from east Essex go up against Anya's team from Newcastle for a chance to get to the Ball Room. Show more
The country's best young bakers go head to head. The first quartet of junior bakers enter the tent for two exciting baking challenges. Show more
The country's best young bakers go head to head. The second batch of bakers to whip up a storm are Evie, Billy, Shriyana and Nigel. Show more
The country's best young bakers go head to head. The four bakers entering the third heat have the mammoth task of flipping 12 uniform pancakes. Show more
The country's best young bakers go head to head. Millie, Mack, Zac and Rosie take on two internationally themed challenges. Show more
The country's best young bakers go head to head. The judges set Nikki, Oli, Elodie and Hamish a British technical challenge. Show more
The country's best young bakers go head to head. Judges Nadiya and Allegra set bakers a technical recipe for a British classic, battenberg with a bit of a twist. Show more