PBS America Maiya May learns about the severe impacts of droughts and floods on agriculture and the alarming depletion of groundwater reserves. (Part 4 of 6). 2026-07-17 2026-07-17 2026-07-17 The quest for the Holy Grail has consumed knights, Crusaders and Hollywood alike. One church in Spain says they have found the secret chalice. (Part 5 of 6) (S). 2026-07-17 This revealing documentary shows the extent of the Duke of Windsor's treachery during WW2. (S). 2026-07-17 Victorian Britain on Film offers audiences a unique window into a bygone era. Most of these films have been transformed by colourising them for the first time. 2026-07-17 Autumn 1944. In the late autumn of 1944 American soldiers suffer terrible losses when they are ordered into fiercely defended terrain. (Part 10 of. 2026-07-17 Maiya May goes to Cheyenne to visit a supercomputer. In Michigan, she observes the explosive end of a coal plant. (Part 5 of 6). 2026-07-17 The quest for the Holy Grail has consumed knights, Crusaders and Hollywood alike. One church in Spain says they have found the secret chalice. (Part 5 of 6) (S). 2026-07-17 This revealing documentary shows the extent of the Duke of Windsor's treachery during WW2. (S). 2026-07-17 Victorian Britain on Film offers audiences a unique window into a bygone era. Most of these films have been transformed by colourising them for the first time. 2026-07-17 Autumn 1944. In the late autumn of 1944 American soldiers suffer terrible losses when they are ordered into fiercely defended terrain. (Part 10 of. 2026-07-17 The quest for the Holy Grail has consumed knights, Crusaders and Hollywood alike. One church in Spain says they have found the secret chalice. (Part 5 of 6) (S). 2026-07-17 This revealing documentary shows the extent of the Duke of Windsor's treachery during WW2. (S). 2026-07-17 Victorian Britain on Film offers audiences a unique window into a bygone era. Most of these films have been transformed by colourising them for the first time. 2026-07-17 Autumn 1944. In the late autumn of 1944 American soldiers suffer terrible losses when they are ordered into fiercely defended terrain. (Part 10 of. 2026-07-17 This revealing documentary shows the extent of the Duke of Windsor's treachery during WW2. (S). 2026-07-17 Victorian Britain on Film offers audiences a unique window into a bygone era. Most of these films have been transformed by colourising them for the first time. 2026-07-17 2026-07-18 2026-07-18 Maiya May returns to Florida to learn how climate change is impacting ocean currents. She then goes to Georgia to learn about a non-profit. (Part 6 of 6). 2026-07-18 Investigators trace the rise and fall of a thriving metropolis in North America known as Cahokia. (Part 1 of 6) (S). 2026-07-18 The Copper Scroll may hold the secret to the location of the Ark of the Covenant, but experts must decode it in order to find its legendary treasure trove. (Part 2 of 6) (S). 2026-07-18 Investigators search for the lost city of Pi-Ramesses in ancient Egypt, named for Ramesses II, who conducted the largest building program of his time. (Part 3 of 6) (S). 2026-07-18 the Hidden Chamber: Since Howard Carter's discovery in 1922, archaeologists have been trying to unlock the secrets of Tutankhamen's tomb. (Part 4 of 6) (S). 2026-07-18 Rome created the largest empire in the ancient world. Its armies, organisation and building innovation created a vast territory linked by roads. (S). 2026-07-18 January 1944 to June 1944. Allied troops are pinned down at Anzio, while elsewhere the killing goes on. African-Americans put pressure on the military. (Part 6 of. 2026-07-18 6 June 1944: D-Day. In the early hours of 6 June 1944, the invasion of France begins. It is the bloodiest day in American history since the Civil War. (Part 7 of. 2026-07-18 June 1944 to August 1944. The allied death toll increases at an incredible rate, but by August the Germans are in full retreat and Paris is liberated. (Part 8 of. 2026-07-18 Autumn 1944. Allied commanders gamble on a plan to drop troops behind enemy lines. The mission fails, and it becomes clear that the war in Europe will not end before winter. (Part 9 of. 2026-07-18 Autumn 1944. In the late autumn of 1944 American soldiers suffer terrible losses when they are ordered into fiercely defended terrain. (Part 10 of. 2026-07-18 Investigators trace the rise and fall of a thriving metropolis in North America known as Cahokia. (Part 1 of 6) (S). 2026-07-18 The Copper Scroll may hold the secret to the location of the Ark of the Covenant, but experts must decode it in order to find its legendary treasure trove. (Part 2 of 6) (S). 2026-07-18 Investigators search for the lost city of Pi-Ramesses in ancient Egypt, named for Ramesses II, who conducted the largest building program of his time. (Part 3 of 6) (S). 2026-07-18 the Hidden Chamber: Since Howard Carter's discovery in 1922, archaeologists have been trying to unlock the secrets of Tutankhamen's tomb. (Part 4 of 6) (S). 2026-07-18