Amazing documentary to introduce everyone to the world of Metrology: The Science of Measurement. History, technology and great anecdotes tell the story of how things are measured and how those measurement units came into being. The fact that there is a physical 1 kilogram standard that sits in a château on the outskirts of Paris is probably unknown to 99 percent of the population. It's sad that this isn't available on a DVD set...and even worse that it isn't available in the US. This would just the product to introduce school-age children to a critical science that most of us don't realize exists--and take for granted every day.BBC...are you listening?!?