BBC Four HD

Programmes start at 7.00pm.

The ruined temples of Sri Lanka are home to Gremlin, a baby toque macaque. With predators nearby and a rivalry with other monkeys brewing, she must quickly learn how to survive.

David Attenborough looks at the history of reptiles, the first back-boned creatures to solve the problems of living high and dry on land.

Monty Don looks back on the remarkable career of TV gardener Geoff Hamilton, who led Gardeners' World for 16 years, until his untimely death in 1996.

Gardening magazine. On the 20th anniversary of the death of Geoff Hamilton, Adam Frost returns to Barnsdale, to pay tribute and revisit some of his own early gardening memories.

Geoff Hamilton, Margaret Waddy and John Kelly present a programme looking at propagation from Barnsdale, with the help of fuchsia expert John Smith.

First shown in 1998 as a tribute to TV gardener Geoff Hamilton, this programme tells the history of the gardens he created in Barnsdale in Leicestershire.

The Sentinels experience a serious setback while en route to free Mazauric. Contains some strong language and upsetting scenes.

With Gabriel and Djibouti captured, how will the Sentinels take on their formidable foe? Contains graphic violence and upsetting scenes.

When Hyacinth gets passionate about art, Daddy decides to join the Foreign Legion. Meanwhile, Mr Finchley has desires of his own for Rose.

Victor is unable to sleep, and things get so desperate that he contemplates opening Ronnie and Mildred's Christmas present from last year.

Dr Helen Czerski examines the hottest natural phenomenon on the planet - lightning. High-speed cameras show the secrets of upward lightning that's triggered by urban landscapes.

Gardening magazine. On the 20th anniversary of the death of Geoff Hamilton, Adam Frost returns to Barnsdale, to pay tribute and revisit some of his own early gardening memories.

Geoff Hamilton, Margaret Waddy and John Kelly present a programme looking at propagation from Barnsdale, with the help of fuchsia expert John Smith.

First shown in 1998 as a tribute to TV gardener Geoff Hamilton, this programme tells the history of the gardens he created in Barnsdale in Leicestershire.

David Attenborough looks at the history of reptiles, the first back-boned creatures to solve the problems of living high and dry on land.

Programmes start at 7.00pm.

Programmes start at 7.00pm.

Examining the extravagant castles and palaces created by King Ludwig II of Bavaria.

A portrait of the harsh beauty and surprising wildlife of Scotland's Cairngorms National Park, home to some of the UK's rarest and most spectacular animals.

Rising star Sueye Park makes her Proms debut with the Sibelius Violin Concerto. Plus archive gems from Liya Petrova and Nicola Benedetti.

Actor Bill Paterson looks back on one of the earliest roles of his career.

John McGrath's play about the exploitation of the Scottish people throughout history. Contains some violence and some upsetting scenes.

Robert Dawson Scott presents an in-depth look at the fortunes of the 7:84 Theatre Company, founded by John McGrath in the late 1960s.

Robert Dawson Scott presents an in-depth look at the fortunes of the 7:84 Theatre Company, founded by John McGrath in the late 1960s.

Nicholas Crane unravels the tale of Sir Hugh Munro, whose exploration of the wild Scottish peaks little more than a century ago began a modern mountaineering obsession.

Examining the extravagant castles and palaces created by King Ludwig II of Bavaria.

A portrait of the harsh beauty and surprising wildlife of Scotland's Cairngorms National Park, home to some of the UK's rarest and most spectacular animals.

Programmes start at 7.00pm.

Programmes start at 7.00pm.

Nature documentary series. All manner of creatures thrive in the Caribbean's warm waters. But extreme heat in Africa unleashes terrifying hurricanes.

Andrew Graham-Dixon explores Spain's art history. He travels from Cordoba to Granada via Seville, examining the influence of Moorish culture.

Sally Magnusson shares memories of her father Magnus's time as the host of Mastermind.

Magnus Magnusson presents the 1972 final of the classic quiz.

Robert Robinson chairs as Arthur Marshall, Sally Magnusson and Peter Egan take on Frank Muir, Anna Massey and Godfrey Smith in the panel game of word definitions and deceptions.

Dangerous politics and turbulent love shock Frida's world. Contains some strong language and some upsetting scenes.

Docudrama that explores the life and work of JMW Turner, considered by many to be Britain's greatest landscape painter, but whose private life was full of extremes and contradictions.

Nature documentary series. All manner of creatures thrive in the Caribbean's warm waters. But extreme heat in Africa unleashes terrifying hurricanes.

Dangerous politics and turbulent love shock Frida's world. Contains some strong language and some upsetting scenes.

Andrew Graham-Dixon explores Spain's art history. He travels from Cordoba to Granada via Seville, examining the influence of Moorish culture.

Programmes start at 7.00pm.

Programmes start at 7.00pm.

Michael Portillo's postwar journey from Merseyside to Teesside resumes at Brayford Pool in Lincoln, where England's oldest canal, the Fossdyke, meets the city of Lincoln.

Julia Bradbury explores the work of Britain's well-known fell walker and author Alfred Wainwright. She is in the Western Lakes to walk to the summit of the Haystacks fell.

Sitcom. Audrey fforbes-Hamilton, an upper-class widow, is forced into an alliance with a self-made man in a bid to keep her stately home.

Sitcom about an obsessive snob. When Hyacinth plans a nautical supper, events take an unexpected turn - and so does the boat.

Helen Castor explores the lives of the Tudor queens Jane, Mary and Elizabeth, and how each struggled with wearing a crown that was made for a male head.

Sam Willis looks at how castles survived into the Tudor era. But these strategic seats of power had to become palaces to impress monarchs such as Elizabeth I.

Obama warns the Syrian regime against considering using chemical weapons. Contains some violence and disturbing scenes.