Dr Tori Herridge heads for the Severn estuary. Here, she sees a mysterious ruin located on a bleak island; tells the story of a medieval village lost to the sea; and learns about the Aust ferry, which once provided a vital link between Wales and England.
The sword-and-sandal epic continues with an episode that finds Paris being hunted in the hills where he grew up, a development that leaves Helen isolated and without an ally. Meanwhile, the Trojans try to make the most of divisions within the Greek camp.
The documentary maker Vanessa Engle looks back 30 years to one of the darkest chapters in the conflict in Northern Ireland, when murderous violence blighted two successive republican funerals in March 1988. Engle hears from those who saw the killings or were closely connected to them, with witnesses sharing their stories for the first time.
On 2 January 1971, 66 people died in a crush at Rangers’ football ground, Ibrox, as they tried to leave the stadium after an Old Firm derby. Alan Dein hears from some of those who were there – football supporters who continue to be affected by the horror of what they witnessed.
The US version of the celebrity genealogy series returns with an episode featuring Courteney Cox of Friends fame. The actor was raised in Alabama, but much of the episode takes place on the other side of the Atlantic as Cox investigates the stories of British ambassadors, including one Thomas de Berkeley.
The battlefield series, set exactly a century ago and based on war diaries and eyewitness accounts, returns with an episode set against the backdrop of the sudden British retreat of 1918. As fog falls and German stormtroopers advance, three signallers face a terrifying choice.
In February 1945, Winston Churchill, Franklin D Roosevelt and Joseph Stalin gathered at the Yalta Conference. The final episode in the series looking at key moments in the Second World War considers how Stalin outmanoeuvred his allies as the post-conflict fate of Europe was decided.
Melvyn Bragg and learned guests discuss Alexis de Tocqueville’s Democracy In America, published in two parts in 1835 and 1840. It’s a work that considered how elements of the American political system might be employed in Europe and has often been revisited by politicians ever since.
Mary Beard presents an episode devoted to religious art. Her travels for the documentary take in the temple at Angkor Wat, the Tintoretto crucifixion in Venice, the Buddhist caves of Anjanta, Istanbul’s Blue Mosque and a location that has been associated with different religions down the years: the Parthenon.
The celebrity pilgrims continue their travels in Spain, heading from Navarre to Galicia. Along the way, they enjoy a wine fountain, encounter racism and face the prospect of a 100km hike to the end of their journeys, an idea that fills the Rev Kate Bottley with dread.