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Blue Peter presenter Helen Skelton makes an epic 500-mile journey to the South Pole by kite, by ski and - in a world first - by bike, to raise awareness for Sport Relief.
Tears of Antarctica
Pole to Pole
Live Aid at 40: When Rock ’n’ Roll Took on the World
Pete Wicks: For Dogs’ Sake
The Black Box on Earth
Frozen Planet
Life in the Freezer