How Do They Do It? is a television series produced by Wag TV for Discovery Channel. Each programme explores how 2 or 3 ordinary objects are made and used. The show's slogan is "Behind the ordinary is the extraordinary." The series is broadcast throughout the world on various Discovery-owned networks including:

Discovery Channel, Science Channel, DMAX and Quest in the United Kingdom;

Science Channel in the United States;

Discovery Channel in Asia, Australia, Belgium, Canada, France, Spain, Switzerland, and the Netherlands;

Discovery Channel and Discovery Science in Italy.

Series 1 and 2, which were co-produced with Rocket Surgery Productions, were narrated by Rupert Degas; series 3 and 4 were narrated by Iain Lee; and series 5 and 6 were narrated by Dominic Frisby. In 2008, the UK's Channel 5 began airing the series, presented by Robert Llewellyn. This version was released on DVD in the UK in May 2010.

In the United States, the series airs on the Science Channel and is narrated by Chris Broyles.

This programme is similar to the popular Canadian-produced documentary programme, How It's Made, also broadcast on Discovery Channel networks.