Daily from 7.00pm.
Programmes start at 7.00pm.
It is the first of the semi-finals in the University Challenge Christmas quiz for graduates. Jeremy Paxman asks the questions. Show more
Professor Ben Garrod explores how skin has evolved remarkable ways to enable animals to communicate with each other, from vibrant displays of colour to skin pouches to amplify sound. Show more
Historian Ruth Goodman and archaeologists Tom Pinfold and Peter Ginn recreate how the farms of Tudor England celebrated the 12 days of Christmas with banquets and carol singing. Show more
Parliament races to build a bulletproof case of treason against King Charles I, as he prepares an unexpected defence that will decide the fate of a nation. Show more
Mulligan and O'Hare present their album Caravan Park, and Vic reveals his latest plastic surgery enhancement. Three acts battle it out in Novelty Island while Vaun tries to lure Vic away from Bob. Show more
Sitcom. Bob's present for Erik has caught fire. With Vic and the gang, he must go on an underground journey by boat to Phil Collins's house to save Christmas. Show more
Thailand: Earth's Tropical Paradise
Episode 3: The Mysterious North
58 minutes on BBC Four HD
Available for 10 months
Series exploring the paradise of Thailand. Northern Thailand, dominated by mountains and forests, hides ancient creatures and surprising partnerships. Show more
The High Art of the Low Countries
Episode 3: Daydreams and Nightmares
59 minutes on BBC Four HD
Available for years
Andrew Graham-Dixon shows how the Low Countries rose again to become a cultural leader in the modern age, with artists like van Gogh, Mondrian and Magritte. Show more
Period crime drama. It is Thomas Shelby's long-awaited wedding day. In the middle of the celebrations, a mysterious visitor imperils the entire Shelby family. Show more
Period crime drama. Tommy discovers the extent of the mission given to him and the extreme lengths his new paymasters are willing to go to in their quest for power. Show more
Responding to the Italians' actions, Tommy is set on a path of deadly vengeance. Meanwhile, as he makes plans for his mission on behalf of the Russians, he realises there is a traitor in his midst.
Programmes start at 7.00pm.