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Dr Tracy Borman discovers the real reason Princess Margaret's relationship with Peter Townsend came to an end, uncovers her disastrous marriage to the manipulative, unfaithful Lord Snowden, and discovers more about her love of music and devotion to duty, revealing a woman very different to the picture the press would have us believe.

When Luis A Miranda Jr left Puerto Rico for New York City in the 1970s, he had big dreams, but little did he know how far he'd go. A look at the Puerto Rican migrant who helped shape New York politics.

Take to the air with six aeroplanes that have changed the face of military flying forever. When the Soviet-built MiG-15 first screamed over the battlegrounds of the Korean War, America was horrified at what it could do. Nimble, jet-powered, and capable of diving at supersonic speed, it outperforms any machine in the sky. Meanwhile, the F-22 Raptor, through a combination of delays, cost-overruns and a changing combat landscape, never really took off, either literally or metaphorically. And the Dassault Rafale is an aircraft capable of performing both air-to-air and air-to-ground strikes as well as interceptions simultaneously. With 14 hardpoints suitable for carrying nine tons of weaponry and ordnance such as a 30mm cannon, and laser-guided bombs, this aircraft certainly packs a punch.

Her rise was a global phenomenon. Her downfall was a cruel national sport. People close to Britney Spears and lawyers tied to her conservatorship now reassess her career as she battles her father in court over who should control her life.

Archaeologists excavate the ancient landscapes of Saqqara, Egypt's oldest necropolis, to reveal the mysterious origins of the pyramids.

Egyptologists discover an ancient palace, while another team track clues across Egypt's monuments on a mission to unlock the secrets of Ramses' success.

Forty years ago, a sleepy village in the heart of England was the scene of a gruesome discovery when nearly 300 skeletons were unearthed in a mass grave. Bioarchaeologists believes these bones are the last remains of the Great Heathen Army, a legendary Viking fighting force that invaded England in the 9th century. Armed with the latest scientific methods, the team uncovers extraordinary human stories from the front line, including evidence of women warriors, and a lost king reunited with his son in death.

Actor and peace campaigner Mark Rylance explores the extraordinary World War II story of his grandfather, Osmond Skinner, who spent almost four years as a Japanese prisoner of war. Mark uncovers how Osmond, a banker for HSBC, bravely joined the Hong Kong Volunteer Defence Force and was thrown into a deadly battle to defend the island. With no military training, Osmond was shot on Christmas Day and taken as a POW. In this moving and compelling film, Rylance's views on war are tested as he uncovers the real and shocking story of how Osmond survived Hong Kong's notorious POW camps.

Latium, eighth century BC. The Thirty Villages of the Latin League live peacefully under the leadership of Numitor, King of Alba Longa. Forced into exile by a prophecy, his throne goes to the twins Enitos and Iemos. But Numitor's ambitious brother, Amulius, has other plans that will change the boys' fate. Amulius' young daughter Ilia, a Vestal virgin, hides a secret. Meanwhile, in Velia, a group of young men take off for the woods for a rite of initiation. Among them is the slave Wiros. In Latin.

In November 2012, in central Denmark in a small town called Fregerslev, Merethe Schifter Bagge and her team were sent out to do a routine archaeological survey. However, this survey turned out to be anything but routine. They discovered something shiny buried in the soil; one of hundreds of metal pieces from a thousand-year-old horse's bridle. This bridle was part of one of the largest burials ever found in Denmark and it dates to the beginning of the end of the Viking Age. The bridle was made of priceless metals that must have been imported into Denmark. The placement of the bridle in the grave suggests that this was a rider burial; a type of pagan burial where a wealthy Viking would have been buried with a sacrificed horse. This was the grave of a very important Viking who lived around 950 AD. The most bizarre aspect of this burial is that it doesn't contain a body.

From the initial sparks of revolution in Boston to the climactic Siege of Yorktown and beyond, this special paints a comprehensive picture of the African-American experience during the Revolutionary War. Hear the story of the war within the revolution through the eyes of some of the most crucial and significant African-American figures of our country's foundation including Crispus Attucks, Peter Salem, Phillis Wheatley and James Armistead Lafayette. Features NBA legend, best-selling author and esteemed activist Kareem Abdul-Jabbar.

Take to the air with the U-2 Dragon Lady - a secret Cold War spy plane with a troublesome crash record; the AV-8B Harrier - the vertical takeoff 'jump-jet' which changed the face of military air combat; and the KC-135 Stratotanker - the gigantic air tanker which travels the world refuelling jets in mid-air, at speeds of over 550mph. Strap in, this is an aircraft lover's dream ticket.

At the turn of the 20th century, a steady stream of African-Americans left the south, fleeing the threat of racial violence, and searching for better opportunities in the north and the west.

Egyptologists in search of Cleopatra's tomb make a breakthrough, while another team unlock the secrets of the Queen's ancient capital city.

The Great Sphinx is one of the world's most iconic monuments. Archaeologists decode its mysteries and explore the role of Egypt's mythical beasts.

Jackie Kennedy Onassis was the most famous woman in the world, impossibly glamorous and universally admired. She was also complex, layered, and extremely guarded, making her endlessly fascinating and enigmatic. This incredibly compelling film provides a definitive exploration of her life, from iconic first lady to widow, unofficial royalty, and fashion icon.

Samuel L Jackson and the team examine events that ended the slave trade and piece together the heritage and identity taken from the descendants of the millions of trafficked Africans.

Carey Mulligan's grandfather Denzil Booth, a teenager from the Welsh Valleys, travelled thousands of miles to fight the Japanese in the final months of the war. Carey discovers his university education meant Denzil was fast-tracked to be a junior officer in the navy. On board Britain's biggest warship, Denzil lost his closest friends, as it was the first ever to be attacked by a Japanese kamikaze. Carey travels to Japan to understand the culture of the kamikaze from the other side. She's shocked by the age of the pilots and the horrors her grandfather faced when he arrived in Tokyo.