Off the coast of Ireland, Ardal O'Hanlon unearths the rich history, vibrant wildlife and resilient communities thriving in a realm where the ocean reigns supreme.

Ancient Roads From Christ to Constantine charts Christianity's evolution from a small movement to the largest religion in the world, with more than two billion followers. Host Jonathan Phillips, an author and distinguished history professor at Royal Holloway, University of London, journeys into the fascinating world of the early Christians to explore the faith's long struggle and triumph.

Japan's heavy snow reveals stunning Snow Monsters. Join an exciting mountain adventure where fierce winds create ice formations up to 5 meters tall. Discover the hidden joys of Japan's winter mountains and meet warm-hearted locals.

On September 16, 1920, as hundreds of Wall Street workers headed out for lunch, a horse-drawn cart packed with dynamite exploded in front of Morgan Bank — the world’s most powerful banking institution. The blast turned the nation’s financial center into a bloody war zone and left 38 dead and hundreds more seriously injured. As financial institutions around the country went on high alert, many wondered if this was the strike against American capitalism that radical agitators had threatened for so long. A mostly-forgotten act of terror that remains unsolved today, the bombing helped launch the career of a young J. Edgar Hoover and sparked a bitter national debate about how far the government should go to protect the nation from acts of political violence.

On the front lines of the hunt for killer viruses, a shocking discovery is made: viruses, once thought to be a menace to humankind, may in fact be the ultimate creators. Since the beginning of time, they have played a critical role in evolution, shaping us and perhaps even creating us. How could that be? How can an entity seemingly programmed for destruction lead to genetic diversity and new species?

In 1966, drought and an exploding population confronted India with the imminent threat of a severe famine that many scientists and intellectuals feared was a harbinger of global catastrophes to come, as the world's population outstripped its ability to produce food. India turned to Norman Borlaug, an unassuming plant breeder from Iowa whose combination of scientific knowledge and raw determination had made him a legend among a small handful of fellow specialists.

Since the start of the civil war between the Sudanese government and the Rapid Support Forces (RSF), 11.3 million people have fled their homes. Over half of Sudan's population - around 30 million people - need humanitarian assistance, with famine declared in parts of the country. Krishnan Guru-Murthy gains rare access to one of its region to find over a million people on the brink of starvation. He meets a nurse whose work bears witness to the scale of the current crisis, as hungry children line up to be seen and old men die alone in tents. To survive, people are forced to eat leaves, insects and even rats.

The seat of the Pope, Vatican City is the focal point for 1.3 billion Catholics around the world. And it is a place shrouded in secrets. It stretches on less than 500 square meters… Although the Vatican consists of a micro-territory, in less than 2,000 years it has not only become a spiritual beacon for 1.3 billion Catholics, but also an exceptional treasure of world heritage. And to think that this site was originally practically empty… Everything was built around a crucial location: The Tomb of Peter the Apostle. A modest grave that triggered a series of grandiose constructions, starting with the first basilica built during Antiquity, yet almost as big as Notre-Dame de Paris.

Film following Irish ornithologist Sean Ronayne's mission to record the sound of every bird species in Ireland – that's nearly 200 birds. Often joined by his partner Alba, Sean travels to some of the country's most beautiful and remote locations to capture its most elusive species and soundscapes: the busy seabird colony of Skellig Michael; a native woodland free from road noise in the Burren; the corncrake stronghold of Tory Island; a solitary nest in the Donegal uplands. A year in the making, Birdsong offers a fascinating portrait of Sean, whose hypersensitivity to sound has proven both a struggle and a strength.

Mother, fighter and visionary photographer - Tish Murtha emerged from the north east in Thatcher's Britain to expose the struggles and triumphs of her local community. Tish's daughter, Ella, uncovers her poignant story in this heartfelt documentary, piecing together a portrait of a woman who wielded her camera as a tool to celebrate overlooked working-class lives and to strive for social change.

The first TV documentary about pop art sensation Pauline Boty, tracking the artist's original contribution to British art, her feminism and her unique take on the nascent celebrity culture of the 1960s.

Ahead of her time in so many ways, Boty's story ends with her tragic early death at 28 in 1966 and the subsequent revival of interest in her work in the last decade.

Packed full of original photographs and art work, the film calls on an array of family, friends, art critics and famous fans to lead us through the Boty story. Contributors include pop art titan Sir Peter Blake, comedian and artist Jim Moir, critic Kate Bryan, best friend and print designer Natalie Gibson MBE, pop singers Corrine Drewery and Tanita Tikaram and TV presenter Ronnie Archer Morgan.

Ancient Egypt, at the end of the Sixth Dynasty, on the royal burial site of Saqqara, four kings are "missing". Their graves have never been found… Over the course of 3,000 years, more than 300 pharaohs ruled ancient Egypt, most leaving behind well-documented evidence of their existence. But one group of pharaohs - those from the period known as the Old Kingdom - haven't left any archaeological trace of their rule. Now, follow world-renowned Egyptologist Vassil Dobrev as he tries to track down evidence of the most mysterious of these lost kings of Egypt: the pharaoh Pepi I.

In 2002, a group of Falun Gong practitioners in China came up with an audacious plan to hit back at the government's crackdown on their faith. They hijacked the airwaves, broadcasting a video promoting their spiritual movement on state television. Now, more than two decades later, Eternal Spring explores the aftermath of that brazen stunt, with Canadian writer-director Jason Loftus following comic book artist (and Falun Gong practitioner) Daxiong. Featuring vivid animation based on Daxiong's drawings, the film recounts how their plan succeeded, but soon the authorities retaliated, and Daxiong left his homeland.

Presented by Professor Alice Roberts, Dr Onyeka Nubia and Professor Dan George, Fortress Britain looks at key moments in British history where the country has been under threat of foreign invasion, and identifies the physical reminders that remain to this day.

Charts the distinguished career of the award-winning novelist and the long battle with cancer to which she succumbed in 2003 at the age of 68. Born in Chicago in 1957, Carol Shields settled in Canada and went on to raise five children and publish 16 novels, scooping the Pulitzer Prize for her book The Stone Diaries along the way. Interview footage with Carol, her daughters and a selection of her literary peers highlight the life of a gentle unassuming writer.