Discovery and Science Channels How Its Made U-Locks episode. All copyrights go to their respective owners.br How Its Made Season 20 episode 6 U-Locks.br How Its Made S20 E07 [HD] U-Locks - Tepees - Croissants - Rolling Luggage The show is presented on the Science Channel in the US, Discovery Channel .br PLEASE SUBSCRIBE--- How Its Made is a documentary television series that premiered on January 6, 2001 on Discovery Channel in Canada, and Science in .