Season
- Season 0 2009-06-10
- Season 1 2006-05-06
- Season 2 2006-06-24
- Season 3 2007-02-21
- Season 4 2007-04-11
- Season 5 2008-03-03
- Season 6 2009-07-16
- Season 7 2010-06-04
- Season 8 2011-06-03
- Season 9 2012-05-17
- Season 10 2013-09-06
- Season 11 2014-05-15
- Season 12 2015-05-10
- Season 13 2016-08-08
- Season 14 2017-01-06
- Season 15 2017-08-28
- Season 16 2019-06-13
- Season 17 2021-06-01
Season 17 Episode
- Season 9 Episode 1
- Season 9 Episode 2
- Season 9 Episode 3
- Season 9 Episode 4
- Season 9 Episode 5
- Season 9 Episode 6
- Season 9 Episode 7
- Season 9 Episode 8
- Season 9 Episode 9
- Season 9 Episode 10
- Season 9 Episode 11
- Season 9 Episode 12
- Season 9 Episode 13
- Season 9 Episode 14
- Season 9 Episode 15
- Season 9 Episode 16
- Season 9 Episode 17
- Season 9 Episode 18
- Season 9 Episode 19
- Season 9 Episode 20
How Do They Do It? - Season 9 Episode 8 Suspension Bridge, Crossbows
7.60 22 minutes How do they make steel cables strong enough to hold up a 50,000 tonne bridge; why do modern hunters use medieval weapons; and how do shops know which clothes sizes...
