Download video: How It`s Made | Combination Locks
Channel: How It`s Made
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Mark Tewksbury (2001)
Lynn Herzeg (2002–2004)
June Wallack (2005)
Lynne Adams (2006–2016)
The show is presented on the Science Channel in the US, Discovery Channel Canada in Canada, and on the Discovery Channel in the United Kingdom.
To purchase DVDs of the show please visit the official "How It's Made" website:
Fair Use Notice:
For educational purposes only.