BBC Four HD 2026-07-16 Programmes start at 7.00pm. [HD] 2026-07-16 5/15. Michael goes on a tour around Heathrow Airport, taking an eerie walk around the mothballed Terminal 1 building and ending up atop the iconic 87.5 metre control tower. [S,AD] [HD] 2026-07-16 4/4. As Robbie makes his way to Ripon in North Yorkshire, he tackles the fast-flowing River Ouse and is forced to make an emergency stop. [S] [HD] 2026-07-16 A journey into the eye-opening realm of insects to explore how scientists are using traditional and cutting-edge techniques to search for a single, common insect ancestor. [S] [HD] 2026-07-16 6/6. How fear and hatred of Bolshevism drove many Germans to fight to the bitter end. Contains scenes which some viewers may find disturbing. [S] 2026-07-16 Lucinda Lambton investigates the history of Castle Leslie in Ireland. [S] 2026-07-16 8/9. On the night of the 1987 hurricane, Nicky leaves Mary. Tosker finds comfort in Elaine. Contains some strong language and some scenes of a sexual nature. [S] 2026-07-16 9/9. 1995: Nicky goes back to his roots and to Mary. Geordie has become an alcoholic, and Tosker realises his dream of a floating nightclub. Contains some strong language. [S] 2026-07-16 Could alien life exist closer than we think - perhaps right next door? The team investigate evidence that suggests the search for life beyond Earth may lie within our own solar system. [S] [HD] 2026-07-16 3/4. Narrowboater Robbie Cumming explores the Victorian village of Saltaire in West Yorkshire and moors up for the weekend in Leeds Dock. [S] [HD] 2026-07-16 4/4. As Robbie makes his way to Ripon in North Yorkshire, he tackles the fast-flowing River Ouse and is forced to make an emergency stop. [S] [HD] 2026-07-16 A journey into the eye-opening realm of insects to explore how scientists are using traditional and cutting-edge techniques to search for a single, common insect ancestor. [S] [HD] 2026-07-16 5/15. Michael goes on a tour around Heathrow Airport, taking an eerie walk around the mothballed Terminal 1 building and ending up atop the iconic 87.5 metre control tower. [S,AD,SL] [HD] 2026-07-16 Programmes start at 7.00pm. [HD] 2026-07-16 2026-07-16 2026-07-16 2026-07-17 Programmes start at 7.00pm. [HD] 2026-07-17 6/15. Michael Portillo boards the West Highland Line to begin a railway journey across Scotland's central belt, from the Arrochar Alps to the Loch of the Lowes. [S,AD] [HD] 2026-07-17 Ben Robinson explores the Cornish fishing village of Port Isaac, behind whose quaint facade lies something far more gritty. [S] [HD] 2026-07-17 Immersive documentary chronicling Gustave Eiffel's extraordinary feat of engineering. [S,AD] [HD] 2026-07-17 An intimate portrait of a fiercely independent Hollywood star who left it all behind to live life on her own terms. Contains some strong language. [S] [HD] 2026-07-17 An ex-police officer, who suffers from an intense fear of heights, is hired to trail an old friend's wife. [1958] [S,AD] [HD] 2026-07-17 Alfred Hitchcock in conversation with fellow director Bryan Forbes. From 1969. Contains some scenes which some viewers may find upsetting. [S] 2026-07-17 An intimate portrait of a fiercely independent Hollywood star who left it all behind to live life on her own terms. Contains some strong language. [S] [HD] 2026-07-17 6/15. Michael Portillo boards the West Highland Line to begin a railway journey across Scotland's central belt, from the Arrochar Alps to the Loch of the Lowes. [S,AD,SL] [HD] 2026-07-17 Programmes start at 7.00pm. [HD] 2026-07-17 2026-07-17 2026-07-17