BBC Four HD

Programmes start at 7.00pm.

David Attenborough looks at how ostriches have developed bizarre survival strategies, from flamboyant sex to kidnapping.

Julian Richards joins archaeologists in a farmer's field in Cheshire as they excavate a long-lost chapel and the undisturbed burials of medieval landowners.

Leonard Sachs presents the old-time music hall show from the City Varieties Theatre. With Ken Dodd, Lyn Kennington, the Jan Hunt Panto, and performers from the Players Theatre.

The mayor of Titterslow wants Hetty to find his daughter, but there must be no publicity and no police.

The murder of a rap music manager leads Ikmen and team to investigate intrigue and scandal in one of Istanbul's richest families.

The Demir investigation feels like a wild goose chase until Ikmen decides to look much deeper into the past. Leyla begins to remember things from before her accident.

Michael Parkinson in conversation with Kenneth Allsop, Lauren Bacall and Tom Paxton. First transmitted in 1972.

Classic sitcom. MPs have been complaining about their phones being tapped. Jim Hacker naturally denies this, only to be told by Sir Humphrey that it is in fact true.

Sitcom. Hyacinth has asked the new vicar to tea, and - in her usual meticulous way - she has organised the event down to the last sugar lump. Events take a sudden turn.

It's a scorcher as Gareth Edwards and wife Maureen get to the seaside resort of Llandudno.

Leonard Sachs presents the old-time music hall show from the City Varieties Music Hall. With Ken Dodd, Lyn Kennington, the Jan Hunt Panto and performers from the Players' Theatre.

The mayor of Titterslow wants Hetty to find his daughter, but there must be no publicity and no police.

Programmes start at 7.00pm.

Programmes start at 7.00pm.

Dan Cruickshank looks at the architecture of Norfolk with the help of Nikolaus Pevsner's architectural guide.

How thousands of strange nocturnal birds make their home on the island of Bardsey in north Wales, and an exploration of the history of the island itself.

Celebrating great music making across Europe, a special concert marking Finnish Independence Day from Helsinki, also featuring music by Saariaho and Klami.

Lucy explores how British history is a concoction of fibs. She debunks the fibs that surround the 'jewel in the crown' of the British Empire - India.

Monsoon weather, remote locations and raw performances feed this hypnotic adaptation. Contains some scenes which some viewers may find upsetting.

A lighthouse-keeper's daughter is trapped in her marriage and longs for the sea. From 1953.

Northern Australia becomes the final frontier as settler expansion accelerates. Contains some scenes which some viewers may find upsetting.

Dan Cruickshank looks at the architecture of Norfolk with the help of Nikolaus Pevsner's architectural guide.

Lucy explores how British history is a concoction of fibs. She debunks the fibs that surround the 'jewel in the crown' of the British Empire - India.

Programmes start at 7.00pm.

Programmes start at 7.00pm.

Antarctica - the coldest, windiest, most hostile continent. Only the toughest can survive here. But the ocean here is warming and with that comes an uncertain future.

A lost thousand-year-old ship transforms the fierce reputation of the Vikings.

Panel game of word definitions and deceptions hosted by Robert Robinson with team captains Frank Muir and Patrick Campbell and guests Diana Quick, Robert Powell, Anouska Hempel and Nigel Havers.

Joseph Cooper invites viewers to match their musical wits against guests Joyce Grenfell, Robin Ray and Richard Baker. With guest musician Alfredo Campoli.

Dr Hannah Fry and a virtual host present a new way of making television. Contains some strong language and some upsetting scenes.

Horizon explores the artificial intelligence required to replace human drivers and explores the implications of a driverless world. First broadcast in 2017.

Alastair Sooke looks at the 20th century's mixture of innovation, scandal and creativity. Contains some strong language.

Joseph Cooper invites viewers to match their musical wits against guests Joyce Grenfell, Robin Ray and Richard Baker. With guest musician Alfredo Campoli.

Antarctica - the coldest, windiest, most hostile continent. Only the toughest can survive here. But the ocean here is warming and with that comes an uncertain future.

A lost thousand-year-old ship transforms the fierce reputation of the Vikings.

Programmes start at 7.00pm.

Programmes start at 7.00pm.

How the process of building Britain's canals resulted in furthering geological knowledge, as surveyor William Smith created the first geological map of England and Wales.

Derek Brockway walks in Dylan Thomas's footsteps around Swansea before heading to the Llansteffan Peninsula and the Three Rivers estuary.

Sitcom about a snobbish housewife. Hyacinth is looking forward to visiting her favourite stately home, but the trip goes wrong when her family become involved.

Sitcom about a middle-aged man who lives with his parents. Timothy meets a girl at his amateur dramatics society and wants to go on a riverboat shuffle with her.

Simon Schama looks back on his ambitious series A History of Britain, a journey through 5,000 years of life in the British Isles.

Simon Schama begins his history of Britain at the miraculously preserved Stone Age cottages of Skara Brae in Orkney and then moves on to the world of Anglo-Saxon England.

A group of sex workers in Kolkata reclaim their narrative through film-making. Contains some strong language.

Rory Stewart reveals how the Kingdom of Northumbria was born in Britain's lost Middleland.

Dr Hannah Fry and a virtual host present a new way of making television. Contains some strong language and some upsetting scenes.

How the process of building Britain's canals resulted in furthering geological knowledge, as surveyor William Smith created the first geological map of England and Wales.

Derek Brockway walks in Dylan Thomas's footsteps around Swansea before heading to the Llansteffan Peninsula and the Three Rivers estuary.

Horizon explores the artificial intelligence required to replace human drivers and explores the implications of a driverless world. First broadcast in 2017.

Programmes start at 7.00pm.

Programmes start at 7.00pm.

Liz McIvor charts the struggles of the builders and engineers tasked with creating a landscape of canals over the rugged terrain surrounding the Pennine hills.

Derek Brockway learns how New Quay on Cardigan Bay inspired some of Thomas's greatest work, before touring Laugharne with Dylan Thomas's granddaughter.

Technical developments are enabling us to see the world of plants in ever greater detail, giving us insights into their remarkable abilities to adapt and survive.

The touching story of a giant otter cub called Sancho who was rescued and is being raised by Brazilian naturalist Carolina Vargas.

Bruce Parry treks into the jungles of Sarawak in search of the last nomadic Penan. Contains some scenes which some viewers may find upsetting.

Actor Bernard Hill, who famously played the character of Yosser Hughes, reflects on the iconic drama series Boys from the Blackstuff.

Chrissie, Dixie, Yosser, Loggo and George sign on before heading off to work for Malloy. Contains language which some may find offensive.

Drama set in recession-hit Britain in the Thatcher era. Dixie Dean, working at night in the port as a security guard, is strongarmed into accepting bribes. Deals with adult themes.