Sir David Attenborough presents this landmark documentary which brings to life, in unprecedented detail, the lost world of the very last days of the dinosaurs. Searching in the hills of North Dakota, palaeontologist Robert DePalma makes an incredible discovery in a prehistoric graveyard known as Tanis - fossilised creatures, astonishingly well preserved like the bodies found at Pompeii.
Whilst DePalma hunts for the evidence that can shed light on the final days of the dinosaurs, state-of-the-art VFX transports Sir David back in time to the Late Cretaceous to witness the creatures who lived at Tanis at the end of the Age of Dinosaurs. Meanwhile, cutting edge scanning techniques reveal fossilised secrets that could change our understanding of the dinosaurs' extinction once and for all.

Science fiction has long anticipated the rise of machine intelligence. Today, a new generation of self-learning computers is reshaping every aspect of our lives. Incomprehensible amounts of data are being collected, interpreted, and fed back to us in a tsunami of apps, smart devices, and targeted advertisements.
Virtually every industry on earth is feeling this transformation, from job automation to medical diagnostics, from elections to battlefield weapons. Do You Trust This Computer? explores the promises and perils of this developing era. Will A.I. usher in an age of unprecedented potential, or prove to be our final invention?

Planets beyond our solar system are known to astronomers as exoplanets. They are at trillions of miles from Earth and yet, it might be possible to detect a faint signature of life in them. From the light of the stars they orbit that passes through the atmosphere of an exoplanet, it is possible to capture the chemical fingerprint of the elements in that atmosphere.
The fictional world Eden is orbiting not one star, but two. The light from its twin stars powers photosynthesis, pumping more oxygen into the atmosphere than in Earth, allowing life to thrive. Grazers are constantly alert to danger, because the canopy is home to predators perfectly evolved to live among the trees. In Episode 3, another topic are fungi and the role they could play on exoplanets. Ecologist Thomas Crowther talks about the role mycelial networks play in the Rothiemurchus forest in Scotland.

Elvis Presley grew up to become the biggest star in music, thanks to a staggering range of influences that created a revolutionary sound in his lifelong search for self-expression. This two-part documentary reveals his creative journey from childhood through his final recording sessions in 1976. It features more than 20 new, primary source interviews with session players, producers, engineers, directors and other artists who knew him or who were profoundly influenced by him. It also features never-before-seen photos and footage from private collections worldwide, and an original score by Pearl Jam lead guitarist Mike McCready.
The first part begins with his early life in Tupelo, Mississippi, and his unprecedented rise to fame over a single year.

Here, Aleks charts how the Web is forging a new brand of politics, both in democracies and authoritarian regimes. With contributions from Al Gore, Martha Lane Fox, Stephen Fry and Bill Gates, Aleks explores how interactive, unmediated sites like Twitter and YouTube have encouraged direct action and politicised young people in unprecedented numbers. Yet, at the same time, the Web's openness enables hardline states to spy and censor, and extremists to threaten with networks of hate and crippling cyber attacks.

The digital era gives rise to unprecedented opportunity to exploit, and be exploited. Troves of child pornography are available at the click of a mouse. Who are these children - and who profits from their abuse? While facilitating the darker side of our impulses, technology is also being touted as a cure to rehabilitate predators. In this episode meet the children who are forced to perform sex acts on camera; people who use the same technology to protect kids and nab the perpetrators; plus, a pedophile who reveals the roots of his addiction.