BBC Four HD 2026-10-15 Programmes start at 7.00pm. [HD] 2026-10-15 4/6. Ben Garrod delves into the surprising ways in which bone has evolved to help vertebrates sense the world around them, from wolves and sheep to the great grey owl. [S] [HD] 2026-10-15 4/4. Timothy and his wife Shane encounter several Scottish ports and islands in the misty drizzle, and venture up the Caledonian Canal. [S,AD] 2026-10-15 Film exploring one of the most important archaeological discoveries of our time - an ancient city in Sichuan, China, lost to time until the chance unearthing of a jade object in 1927. [S] [HD] 2026-10-15 1/5. The rocky planets Mercury, Venus, Earth, and Mars were born at the same time from the same material, yet they have lived radically different lives. What immense forces are at play? [S,AD] [HD] 2026-10-15 Dame Janet Suzman shares her memories of making The Singing Detective, the groundbreaking Dennis Potter drama which is widely regarded as a landmark television moment. [S] [HD] 2026-10-15 1/6. Dennis Potter's classic drama serial with music. Pulp thriller writer Philip Marlow is in hospital with psoriasis, tormented by his past and threatened by his future. Deals with adult themes. [S] 2026-10-15 2/6. Marlow faces his personal misery of the talking cure with the psychologist. Contains some scenes of a sexual nature. [S] 2026-10-15 4/6. Ben Garrod delves into the surprising ways in which bone has evolved to help vertebrates sense the world around them, from wolves and sheep to the great grey owl. [S] [HD] 2026-10-15 4/4. Timothy and his wife Shane encounter several Scottish ports and islands in the misty drizzle, and venture up the Caledonian Canal. [S,AD] 2026-10-15 7/12. Documentary which looks at why the most inhospitable place on the planet has exerted such a powerful hold on the imagination of explorers, scientists, writers and photographers. [S] 2026-10-15 1/5. The rocky planets Mercury, Venus, Earth, and Mars were born at the same time from the same material, yet they have lived radically different lives. What immense forces are at play? [S,AD,SL] [HD] 2026-10-15 Programmes start at 7.00pm. [HD] 2026-10-15 2026-10-15 2026-10-15 2026-10-16 Programmes start at 7.00pm. [HD] 2026-10-16 5/6. Ben Garrod uncovers the secrets of how vertebrates capture and devour their food using extreme jaws, bizarre teeth and specialised bony tools. [S] [HD] 2026-10-16 1/5. Rugby legend Gareth Edwards and wife Maureen try steam trains and rallying in Machynlleth. [S] [HD] 2026-10-16 During the Second World War, a group of Allied prisoners of war mount a daring breakout from a supposedly inescapable Nazi prison camp. Based on a true story. [1963] [S] 2026-10-16 Acclaimed mystery about a couple grieving the loss of their daughter in a tragic accident. Contains some strong language, explicit sexual content, some violence... [1973] [S,AD] [HD] 2026-10-16 Donald Sutherland talks with Mark Cousins about his life and work. Contains some strong language, some sexual content and disturbing scenes. [S] 2026-10-16 5/6. Ben Garrod uncovers the secrets of how vertebrates capture and devour their food using extreme jaws, bizarre teeth and specialised bony tools. [S] [HD] 2026-10-16 1/5. Rugby legend Gareth Edwards and wife Maureen try steam trains and rallying in Machynlleth. [S] [HD] 2026-10-16 4/6. Richard Miles examines the legacy of Alexander the Great. In Pakistan he discovers traces of a city where west and east were united in an intriguing new way. [S,AD] [HD] 2026-10-16 Programmes start at 7.00pm. [HD] 2026-10-16 2026-10-16 2026-10-16