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How Do They Do It?

4:30 PM to 5:00 PM
Tuesday 23 June
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Season 16 Episode 14 of 20

A look at how the tallest buildings in the world are cleaned. Plus, the process to make a jigsaw where every piece is unique

How Do They Do It? airs on Discovery Channel HD at 4:30 PM, Tuesday 23 June. (Subtitles.)
Learn more about How Do They Do It? and other education/science/factual topics on our factual page
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