Katrina: The Hurricane That Drowned New Orleans

Over 60,000 years ago, the first modern humans left their African homeland and entered Europe, then a bleak and inhospitable continent in the grip of the Ice Age. But when they arrived, they were not alone: the stocky, powerfully built Neanderthals had already been living there for hundreds of thousands of years. So what happened when the first modern humans encountered the Neanderthals? Did they make love or war?

A new Channel 4 series takes archaeology to the edge this summer as a team of experts tackles sites across the country that are beyond the reach of normal investigations. In Extreme Archaeology, an eight-part series starting on 20 June, a team of archaeologists with help from top climbers, cavers and divers investigates amazing and unique archaeological sites throughout the UK. Many archaeological locations are beyond the reach of your average archaeologist. They are found in inaccessible caves, on treacherous cliffs, deep under water, or in locations simply too remote or dangerous for normal investigation. Their remoteness often means that their secrets are unique, but they can also be under threat from erosion or other factors and this adds a rescue element to any investigation. Using some of the most advanced scientific equipment available, and high-tech miniature cameras and communication systems to record the action, Extreme Archaeology's experts are dropped into extreme and inaccessible environments under time and other pressures that test their personal and professional skills to the limit.

Interviews with those close to the talented footballer reveal the different factors which may have contributed to his untimely end.

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

Dr Richard Clay goes in search of what it is that has made us scribble and scratch mementoes of our lives for more than 30,000 years. From the prehistoric cave paintings of Burgundy in France, through gladiatorial fan worship in Roman Lyons to the messages left on the walls of Germany's Reichstag in 1945 by triumphant Soviet troops, time and again we have wanted to leave a permanent record of our existence for our descendants. And it may be that this is where what today we call art comes from - the humble scratch, graffiti.

"The Great Polar Bear Feast" is the astonishing story of an annual natural phenomenon that occurs in early September on the north slope of the Arctic. Every year, up to 80 polar bears gather on the frozen shores of Barter Island, near the village of Kaktovik, to feast on the hunter-harvested bowhead whale remains.

Exploring one of the most devastating but little-known disasters in London's history, this documentary reveals the shocking events that unfolded during the fateful Thames Flood of 1928.

How the 1948 Olympic Games came into being, as the world struggled to cope in the aftermath of the Second World War, and the Games were held for the first time in 12 years. With Britain in the midst of widespread poverty and rationing, hosting the event seemed unlikely, but existing venues were renovated despite a low budget and little time to play with, and the British people pulled together to make the Games a success.

In this documentary, filmed on location in Paris, Richard Clay argues that the French Revolution of 1789 was not quite as clear-cut in terms of its progress as might first have been assumed

Eyewitnesses give first hand testimony about the worst natural disaster to strike Britain in modern times. On 31 January 1953, a massive storm and its huge tidal surge flooded 250 square miles of land from the Shetlands to the Thames estuary, killing hundreds of people, sinking several ships, and destroying tens of thousands of homes. Few remember this disaster that shocked the country as it emerged from the trauma of World War II, but those who do remember it vividly.