BBC Earth HD

'S1/E3 - Episode 3'. In this final episode, the archaeologists complete the excavation of a wealthy residence, a bakery, and a laundry and, in doing so, discover evidence of what people were doing in the city during its final hours.

'S1/E2 - Dark Worlds'. Professor Brian Cox explores the solar system's hidden realms, between and beyond the planets, where countless worlds lie hiding in the darkness.

'S7/E12 - Oregon'. Ben meets a photographer living out his childhood dream. Dan Price gave up his job as a photographer to live the remotest of lifestyles in a meadow in Oregon, USA.

'S11/E2 - Like Ghosts'. The Hailstones produce an original work of Inupiaq art, and Cole Sturgis ventures into the wilds of the Southeast on a life-or-death hunt.

'S1/E4'. The 11th Century Norman invasion of Britain saw the constructions of fortresses never seen before. Massive basitions were built to ward off and would-be invaders.

'S1/E3 - Railways and the Economy'. Michael examines how railways have shaped the world economy. He recalls how the first tracks were laid to shift coal and iron ore, using animals or winches, long before locomotives were invented.