Beavers: Patagonia invaders

David Attenborough brings to life, in unprecedented detail, the last days of the dinosaurs. Palaeontologist Robert DePalma has made an incredible discovery in a prehistoric graveyard: fossilised creatures, astonishingly well preserved, that could help change our understanding of the last days of the dinosaurs. Evidence from his site records the day when an asteroid bigger than Mount Everest devastated our planet and caused the extinction of the dinosaurs. Based on brand new evidence, witness the catastrophic events of that day play out minute by minute.

Lupita Nyong'o narrates a documentary about Peanuts and its creator, Charles M. Schulz. Famous fans—including Drew Barrymore, Kevin Smith, and Al Roker—share its influence on them, and a new animated story finds Charlie Brown on a quest.

The history of cinematic sound, told by legendary sound designers and visionary filmmakers.

Province of Burgos, northern Spain, October 2015. A group of fans undertake the titanic task of restoring the location of the last scene of The Good, the Bad and the Ugly, the mythical spaghetti western directed by Italian filmmaker Sergio Leone in 1966.

In the shady campgrounds of Yosemite valley, climbers carved out a counterculture lifestyle of dumpster-diving and wild parties that clashed with the conservative values of the National Park Service. And up on the walls, generation after generation has pushed the limits of climbing, vying amongst each other for supremacy on Yosemite's cliffs. "Valley Uprising" is the riveting, unforgettable tale of this bold rock climbing tradition in Yosemite National Park: half a century of struggle against the laws of gravity -- and the laws of the land.