BBC Four HD

Programmes start at 7.00pm.

Tim Dunn visits the Ribblehead Viaduct in the Yorkshire Dales and tours the breathtaking stations of the Hungerbergbahn in Innsbruck.

Chris Beardshaw visits inspirational gardens by helicopter. In Sussex, the most wooded area of the UK, Chris visits Leonardslee Garden and Sheffield Park Garden.

Class-based sitcom. Audrey takes DeVere to task for failing to turn up in church on Sunday, but then fails to practise what she preaches.

Sitcom. Hyacinth's plans to buy a small weekend retreat in the country take an unexpected turn, and Richard has an unexpected fall.

A revealing insight into several great modern photographers, drawn from the BBC's archive. Contains some scenes which some viewers may find upsetting.

Eamonn McCabe explores how science and technology allowed pioneering photographers like Roger Fenton and Julia Margaret Cameron to create a new art form.

For a long time we've known that plants can move, but recent studies reveal other secrets.

Documentary in which gardening expert Chris Beardshaw delves into the micro-world of soil to reveal what it is, how it works and why we couldn't survive without it.

Eamonn McCabe explores how science and technology allowed pioneering photographers like Roger Fenton and Julia Margaret Cameron to create a new art form.

Chris Beardshaw visits inspirational gardens by helicopter. In Sussex, the most wooded area of the UK, Chris visits Leonardslee Garden and Sheffield Park Garden.

A revealing insight into several great modern photographers, drawn from the BBC's archive. Contains some scenes which some viewers may find upsetting.

Programmes start at 7.00pm.

Programmes start at 7.00pm.

Ben Robinson travels to Cushendall in Northern Ireland to explore the Curfew Tower and schoolhouse, built by its forward-thinking 19th-century merchant landlord.

Robbie begins his 300-mile adventure across the north of England and the Midlands. He is forced to make a running repair while on the Tinsley lock flight.

.. Rome: History of the Eternal City. Simon Sebag Montefiore talks about his joy at telling audiences the stories of Rome.

Simon Sebag Montefiore uncovers the central role played by religion in the power of the city of Rome. Every event in ancient Rome revolved around religion.

Mary Beard takes an in-depth look at identity and citizenship within the Roman Empire.

Drama series chronicling the reigns of Roman emperors. With Tiberius retired to Capri, Sejanus plans to tighten his grip on Rome and divorces his wife for Livilla. Deals with adult themes.

Drama chronicling the reigns of four Roman emperors. Claudius has hopes of a return to a republic when Caligula insanely proclaims himself and his sister as gods. Deals with adult themes.