Tonight

• 8:00pm

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  How Hard Can It Be?

  How Hard Can It Be? - 103

  After ten years of building wacky inventions, engineer Vin Marshall teams up with two of his oldest friends to build some of the zaniest engineering feats ever attempted.

• 9:00pm

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  Known Universe

  Blowing Up The Universe

  Hidden behind all its serene beauty is a universe is a place of lurking peril, full of powers so immense they defy our comprehension. In this episode we take a look at our universe's dark side, a cosmos of impending menace.

• 10:00pm

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  Megastructures: Spaceport America

  Megastructures: Spaceport America

  Take an eye-popping look at the greatest structures and machines ever created as we focus on some of the world's modern-day super-human miracles of construction.

• 11:00pm

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  Museum Secrets

  National Archeological Museum of Athens

  Greek ships ram invaders, a dodgy archeologist discovers a golden mask, Alexander the Great sports armour made of cloth, Plato gets high, daredevils descend into a labyrinth, and an ancient gadget predicts the future.