Today 02:25 - 03:25
Algorithms. The hidden world of algorithms, which run everything from search engines to satnavs. [S,SL] [HD]
106: BBC FOUR HD
Sun Sep 13
Today 03:25 - 05:30
Programmes start at 7.00pm. [HD]
Today 05:30 - 18:58
Daily from 7.00pm. [HD]
Today 18:58 - 19:00
Programmes start at 7.00pm. [HD]
Today 19:00 - 20:00
Highlights from the final day singles at the 2026 Solheim Cup as the contest in the Netherlands between Europe and the United States reaches its conclusion. [S] [HD]
Today 20:00 - 22:00
A selection of musical treats from a summer of extraordinary music at the world's biggest classical music festival. From Berlioz to Beethoven, Miles Davis to Marvin Gaye. [S] [HD]
Today 22:00 - 22:15
Performance artist Selina Thompson looks back on the 2021 TV adaptation of her award-winning one-woman show Salt. [S] [HD]
Today 22:15 - 23:00
Artist Selina Thompson recalls her journey by sea to retrace a route of the slave trade. Contains some scenes which some viewers may find upsetting. [S] [HD]
Today 23:00 - 23:10
Stephen Tompkinson looks back on the 1994 TV adaptation of Terence Rattigan's play. [S] [HD]
Today 23:10 - 00:50
A Terence Rattigan play. Hester is rescued by a neighbour after attempting suicide in the flat she shares with her younger lover, ex-RAF pilot Freddie Page. [S]
Mon Sep 14
Tomorrow 00:50 - 01:50
1/2. Dr Helen Czerski investigates the science behind the sounds we're familiar with and the sounds that we normally can't hear, from Big Ben to the Stromboli volcano. [S,AD] [HD]
Tomorrow 01:50 - 02:50
The view from the driving seat as Flying Scotsman travels the Severn Valley Railway. Cab cameras and microphones capture all the action. [S,AD] [HD]
Tomorrow 02:50 - 03:50
2/2. Nature documentary. Joining up with a team of elite Italian cavers, Steve ventures deep within a tepui, inside a newly discovered cave. [S,AD,SL] [HD]
Tomorrow 03:50 - 05:30
Programmes start at 7.00pm. [HD]
Tomorrow 05:30 - 18:58
Daily from 7.00pm. [HD]
Tomorrow 18:58 - 19:00
Programmes start at 7.00pm. [HD]
Tomorrow 19:00 - 20:00
4/4. Documentary celebrating spring on planet Earth, and the extraordinary tricks that animals and plants find to rise to the new challenges it brings. [S,AD] [HD]
Tomorrow 20:00 - 21:00
1/3. Bendor Grosvenor and Emma Dabiri investigate two paintings of characters from the Gospels. [S,AD] [HD]
Tomorrow 21:00 - 21:30
Magnus Magnusson presents the quiz programme from Strathclyde University. The specialist subjects are George Orwell, the history of costume from 1600, Rome and the Common Market. [S]
Tomorrow 21:30 - 22:00
Robert Robinson hosts as Patrick Campbell, Anouska Hempel and Nigel Havers take on Frank Muir, Diana Quick and Robert Powell in the panel game of word definitions and deceptions. [S]
Tomorrow 22:00 - 22:30
Chris Lintott and the team explore the extraordinary engineering, both on Earth and millions of kilometres above it in space, that is transforming modern astronomy. [S] [HD]
Tomorrow 22:30 - 23:00
Artist Lubaina Himid talks to John Wilson about her creative influences. [S] [HD]
Tomorrow 23:00 - 00:00
2/3. Alastair Sooke looks at the maverick sculptors working in the 18th and 19th centuries. [S] [HD]
Tue Sep 15
Tuesday 00:00 - 01:00
3/3. James Fox uses art to explore the relationship between humans and nature across the last 100 years. [S] [HD]
Tuesday 01:00 - 02:00
1/3. Bendor Grosvenor and Emma Dabiri investigate two paintings of characters from the Gospels. [S,AD] [HD]
Tuesday 02:00 - 03:00
4/4. Documentary celebrating spring on planet Earth, and the extraordinary tricks that animals and plants find to rise to the new challenges it brings. [S,AD,SL] [HD]
Tuesday 03:00 - 03:55
3/3. James Fox uses art to explore the relationship between humans and nature across the last 100 years. [S,SL] [HD]
Tuesday 03:55 - 05:30
Programmes start at 7.00pm. [HD]
Tuesday 05:30 - 18:58
Daily from 7.00pm. [HD]
Tuesday 18:58 - 19:00
Programmes start at 7.00pm. [HD]
Tuesday 19:00 - 19:30
5/6. In his exploration of the engineering skills that went into the building of Britain, Fred Dibnah looks at the construction of the canal network. [S,AD]
Tuesday 19:30 - 20:00
1/4. Four-part series about the Lake District. Paul Rose heads to Windermere to find out why early tourists thought the Lakes were so dangerous. [S] [HD]
Tuesday 20:00 - 20:30
1/6. Stately sitcom. Richard offers Ned's services to Audrey in Brabinger's absence but Ned thinks it is all a plot to remove him from his tied cottage. [S]
Tuesday 20:30 - 21:00
6/7. Domestic sitcom. Hyacinth and Richard have finally moved into their 'country retreat'. Although Hyacinth views the flat as 'old-world bijou', Richard finds it anything but. [S]
Tuesday 21:00 - 22:00
1/3. Thomas Boleyn, the patriarch of the Boleyns, is determined to elevate the family name. His ambitions for his three children will take them to the heart of the Tudor court. [S,AD] [HD]
Tuesday 22:00 - 23:00
1/2. Jim Al-Khalili tackles the greatest question in science - how the universe began. By recreating key experiments Jim unravels the mystery of science's creation story. [S,AD] [HD]
Tuesday 23:00 - 23:50
2/3. The father and son undertake the restoration of a ceramic horse from the Edo period. A previous restoration is now showing signs of age, and a new approach is needed. [S] [HD]
Tuesday 23:50 - 00:20
Chris Lintott and the team explore the extraordinary engineering, both on Earth and millions of kilometres above it in space, that is transforming modern astronomy. [S] [HD]
Wed Sep 16
Wednesday 00:20 - 01:20
1/3. Thomas Boleyn, the patriarch of the Boleyns, is determined to elevate the family name. His ambitions for his three children will take them to the heart of the Tudor court. [S,AD] [HD]
Wednesday 01:20 - 01:50
5/6. In his exploration of the engineering skills that went into the building of Britain, Fred Dibnah looks at the construction of the canal network. [S,AD]
Wednesday 01:50 - 02:20
1/4. Four-part series about the Lake District. Paul Rose heads to Windermere to find out why early tourists thought the Lakes were so dangerous. [S] [HD]
Wednesday 02:20 - 03:20
1/2. Dr Helen Czerski investigates the science behind the sounds we're familiar with and the sounds that we normally can't hear, from Big Ben to the Stromboli volcano. [S,AD,SL] [HD]
Wednesday 03:20 - 05:30
Programmes start at 7.00pm. [HD]
Wednesday 05:30 - 18:58
Daily from 7.00pm. [HD]
Wednesday 18:58 - 19:00
Programmes start at 7.00pm. [HD]
Wednesday 19:00 - 19:30
6/6. Fred Dibnah indulges his personal passion for the achievements of the builders of the 19th century. [S,AD]
Wednesday 19:30 - 20:00
2/4. Four-part series about the Lake District. In Derwentwater and Borrowdale, Paul Rose heads for the summit of Great Gable, one of the Lake's best-known peaks. [S] [HD]
Wednesday 20:00 - 21:00
2/2. Dan Snow and his team continue down the Grand Canyon in antique wooden boats as they rediscover one of the Wild West's great adventures. [S,AD] [HD]
Wednesday 21:00 - 22:00
2/2. Amateur footage that reveals both civilian and military life in WWII Germany. Contains some violence and disturbing scenes. [S] [HD]
Wednesday 22:00 - 22:15
Screenwriter Andrew Davies looks back on his acclaimed 1994 adaptation of George Eliot's Middlemarch. [S] [HD]
Wednesday 22:15 - 23:40
1/6. Dr Tertius Lydgate is put in charge of the fever hospital in Middlemarch. Dorothea Brooke marries ageing scholar Edward Casaubon and they honeymoon in Rome. [S]
Wednesday 23:40 - 00:35
2/6. Dorothea is having an uneasy honeymoon in Rome, when Casaubon's restless young cousin Will Ladislaw calls on them. Dr Lydgate discovers he has enemies. [S]
Thu Sep 17
Thursday 00:35 - 01:05
6/6. Fred Dibnah indulges his personal passion for the achievements of the builders of the 19th century. [S,AD]
Thursday 01:05 - 02:05
2/2. Amateur footage that reveals both civilian and military life in WWII Germany. Contains some violence and disturbing scenes. [S] [HD]
Thursday 02:05 - 02:35
2/4. Four-part series about the Lake District. In Derwentwater and Borrowdale, Paul Rose heads for the summit of Great Gable, one of the Lake's best-known peaks. [S] [HD]
Thursday 02:35 - 03:35
2/2. Dan Snow and his team continue down the Grand Canyon in antique wooden boats as they rediscover one of the Wild West's great adventures. [S,AD] [HD]
Thursday 03:35 - 05:30
Programmes start at 7.00pm. [HD]
Thursday 05:30 - 18:58
Daily from 7.00pm. [HD]
Thursday 18:58 - 19:00
Programmes start at 7.00pm. [HD]
Thursday 19:00 - 19:30
1/6. Liz McIvor tells the story of the people who operated the canal boats carrying fuel and goods around the country. [S] [HD]
Thursday 19:30 - 20:00
Archaeologist Ben Robinson explores the rise, fall and rise of Lavenham in Suffolk, the best-preserved medieval village in the country. [S] [HD]
Thursday 20:00 - 23:30
Idealistic, misfit British officer TE Lawrence leads a legendary desert campaign. [1962] [S]
Thursday 23:30 - 00:10
A compilation of rarely seen interviews and archive footage tells the story of movie-master David Lean, one of Britain's greatest film directors. [S]
Fri Sep 18
Friday 00:10 - 01:10
Margy Kinmonth meets millionaire customers and world-famous designers as she explores the anachronistic but little-explained pocket of the fashion industry known as haute couture. [S,AD]
Friday 01:10 - 02:10
3/3. A look at how an international team of scientists is trying to change people's perceptions of sharks. However, their breakthroughs come at a time when many sharks face extinction. [S,AD] [HD]
Friday 02:10 - 02:40
Archaeologist Ben Robinson explores the rise, fall and rise of Lavenham in Suffolk, the best-preserved medieval village in the country. [S] [HD]
Friday 02:40 - 03:10
1/6. Liz McIvor tells the story of the people who operated the canal boats carrying fuel and goods around the country. [S] [HD]
Friday 03:10 - 05:30
Programmes start at 7.00pm. [HD]
Friday 05:30 - 18:58
Daily from 7.00pm. [HD]
Friday 18:58 - 19:00
Programmes start at 7.00pm. [HD]
Friday 19:00 - 19:30
Sara Cox presents the pop chart programme, featuring Steps, Angie Stone, Sweet Female Attitude, Bloodhound Gang, Lock 'n' Load, Hanson, Lonestar and Craig David. [S]
Friday 19:30 - 20:00
Jayne Middlemiss presents the pop chart programme, first broadcast on 21 April 2000 and featuring Craig David, Sisqo, Sash!, Oasis, Jessica Simpson, Point Break and Fragma. [S]
Friday 20:00 - 20:40
Steve Wright introduces the pop programme, featuring performances from Gidea Park, Beggar & Co, Sheena Easton, Godley & Creme, The Pointer Sisters, Bucks Fizz and Adam & The Ants. [S]
Friday 20:40 - 21:10
Simon Bates and Peter Powell present the pop chart programme from September 1985. Featuring Red Box, Madonna, Lloyd Cole & The Commotions, and David Bowie & Mick Jagger. [S] [HD]
Friday 21:10 - 22:10
Relive the highlights from an unforgettable weekend of Radio 2 in the Park in Stirling, with huge performances from Chaka Khan, Simple Minds, Texas, Lulu, James Blunt and many more. [S] [HD]
Friday 22:10 - 23:35
The Rolling Stones captured live at Hollywood's Fonda Theatre in May 2015. [S] [HD]
Friday 23:35 - 00:35
1/4. Mick Jagger talks openly about his 60 years as a musical visionary and cultural idol. Contains some strong language. [S] [HD]
Sat Sep 19
Saturday 00:35 - 01:35
3/4. Rolling Stones guitarist Ronnie Wood talks about his life at the heart of rock 'n' roll. Contains very strong language. [S] [HD]
Saturday 01:35 - 02:15
Steve Wright introduces the pop programme, featuring performances from Gidea Park, Beggar & Co, Sheena Easton, Godley & Creme, The Pointer Sisters, Bucks Fizz and Adam & The Ants. [S]
Saturday 02:15 - 02:45
Simon Bates and Peter Powell present the pop chart programme from September 1985. Featuring Red Box, Madonna, Lloyd Cole & The Commotions, and David Bowie & Mick Jagger. [S] [HD]
Saturday 02:45 - 03:15
Sara Cox presents the pop chart programme, featuring Steps, Angie Stone, Sweet Female Attitude, Bloodhound Gang, Lock 'n' Load, Hanson, Lonestar and Craig David. [S]
Saturday 03:15 - 05:30
Programmes start at 7.00pm. [HD]
Saturday 05:30 - 18:58
Daily from 7.00pm. [HD]
Saturday 18:58 - 19:00
Programmes start at 7.00pm. [HD]
Saturday 19:00 - 19:05
The touching story of a rescued giant otter cub being raised by a Brazilian naturalist. [S]
Saturday 19:05 - 20:05
1/3. Wildlife cameraman Simon King and his family experience the changing seasons on the Shetland Islands. The winter weather, with winds of over 100mph, makes life tough for them. [S,AD]
Saturday 20:05 - 21:00
13/13. David Attenborough seeks to explain how we came to dominate life on earth, tracing the African origins of humans to nearly three million years ago. [S] [HD]
Saturday 21:00 - 21:55
1/6. Meg Steinheil is discovered bound and gagged, with the bodies of her husband and mother. [S] [HD]
Saturday 21:55 - 22:50
2/6. A torn-up card provides police with a lead in the case of the Steinheil home invasion, but their resources are stretched when a gunman attempts to assassinate Alfred Dreyfus. [S] [HD]
Saturday 22:50 - 23:35
1/4. Hoping for a peaceful holiday, Martin Scarsden is perplexed by a strange call. Contains some strong language and some upsetting scenes. [S,AD] [HD]
Saturday 23:35 - 00:20
2/4. Martin and Mandy learn that her drink had been spiked at Hummingbird Beach retreat. Contains strong language and some violent scenes. [S,AD] [HD]
Sun Sep 20
Sunday 00:20 - 00:50
1/6. Stately sitcom. Richard offers Ned's services to Audrey in Brabinger's absence but Ned thinks it is all a plot to remove him from his tied cottage. [S]
Sunday 00:50 - 01:20
6/7. Domestic sitcom. Hyacinth and Richard have finally moved into their 'country retreat'. Although Hyacinth views the flat as 'old-world bijou', Richard finds it anything but. [S]
Sunday 01:20 - 02:15
13/13. David Attenborough seeks to explain how we came to dominate life on earth, tracing the African origins of humans to nearly three million years ago. [S] [HD]
Sunday 02:15 - 03:15
3/3. A look at how an international team of scientists is trying to change people's perceptions of sharks. However, their breakthroughs come at a time when many sharks face extinction. [S,AD,SL]
Sunday 03:15 - 05:30
Programmes start at 7.00pm. [HD]
Sunday 05:30 - 18:58
Daily from 7.00pm. [HD]
Sunday 18:58 - 19:00
Programmes start at 7.00pm. [HD]
Sunday 19:00 - 20:00
Tom Fort embarks on a 170-mile journey down Britain's third-longest river, the Trent. [S,AD] [HD]
Sunday 20:00 - 21:00
2/3. Exploring the Fens of East Anglia, a landscape of wild wetlands and fertile farmland. [S,AD] [HD]
Sunday 21:00 - 22:00
1/2. Richard E Grant follows in the footsteps of artists who have lived, loved and painted on France's Cote d'Azur, including Cezanne, Monet, Renoir and Matisse. [S] [HD]
Sunday 22:00 - 22:20
Writer David Ireland shares his recollections of his award-winning play Cyprus Avenue, which won huge international praise and gave actor Stephen Rea the role of a lifetime. [S] [HD]
Sunday 22:20 - 23:55
David Ireland's award-winning dark comedy about sectarian hatred in Northern Ireland. Contains very strong language and disturbing scenes. [S] [HD]
Sunday 23:55 - 00:55
The discovery of an ancient music score in the Louvre sets researchers on a mission to recreate the music as it was originally heard by the Greeks 2,400 years ago. [S] [HD]
Mon Sep 21
Monday 00:55 - 01:55
2/2. Dr Helen Czerski examines the extraordinary messages sound waves carry and how they help in understanding the world around us. [S,AD] [HD]