The Secret Life of Machines
Found whole series (it seems) of The Secret Life of Machines
Excerpt:
Just how does a video recorder work? And how about fax machines, cars, washing machines, electric light, telephones, vacuum cleaners, and refrigerators? You'll find the answers here. This site is designed as a companion to the TV series 'The Secret Life Of Machines' written by Tim Hunkin, and presented by Tim Hunkin and Rex Garrod.
Here is the homepage describing each episode
http://www.secretlifeofmachines.com/index.shtml
And here they are on Google Video!
http://video.google.com/videoplay?docid=-8470833559277771120&q=%22the+secret+life+of+machines%22