Daily TV & radio guide - Saturday

The Medieval Ball (2.30 R4). Terry Jones continues his exploration of the medieval mind and its manifestation in maps and elsewhere.
Stolen Goods, National Treasures (6.00 BBC2). It's not just the Elgin Marbles. Other British Museum artefacts, such as its Benin bronzes, which Nigeria would like back, are also under dispute. And what about the Native American pieces in Glasgow's Kelvingrove Museum? Or the British Library's Lindisfarne Gospels - shouldn't they be in Durham Cathedral? These and other questions of "cultural restitution" are debated by the BM's Nigel Barley, Ian Jenkins and director Robert Anderson, Alexis Mantis of the Parthenon Museum, Nigeria's Wole Soyinka, historian of Africa Frank Willett and Glasgow Museums director Mark O'Neill. » The British Museum ; » National Museums of Scotland
House Detectives (6.50 BBC2). "Haunted" cottages in Suffolk. » House detectives
The Sandman (7.15 C4). Reworking of E.T.A. Hoffmann's story by Will Tuckett and the Brothers Quay.
This Meaningless Life (7.15 R3). Susan Blackmore discusses belief and science with psychologist Rev. Dr. Fraser Watts and neurosurgeon Henry Marsh, senior consultant at Atkinson Morley's Hospital.
Secrets of the Ancients (7.20 BBC2). Repeat series continues: this week, an attempt to reconstruct some of the achievements of Mexico's 3,000-year-old Olmec civilisation with, among others, sculptor Glyn Williams of the Royal College of Art.
Saturday (8.00 C4). Documentary about the British weekend by James Runcie - son of the former archbishop. Followed the next day by, predictably, Sunday (8.05 C4)