Season
- Season 1 1993-12-10
- Season 2 1994-12-16
- Season 3 1995-08-20
- Season 4 1996-09-02
- Season 5 1997-08-17
- Season 6 1998-07-27
- Season 7 2000-01-03
- Season 8 2001-01-08
- Season 9 2002-01-02
- Season 10 2003-01-01
- Season 11 2004-01-16
- Season 12 2005-01-05
- Season 13 2006-01-04
- Season 14 2007-01-17
- Season 15 2008-01-07
- Season 16 2010-01-14
- Season 17 2010-10-29
- Season 18 2011-10-03
- Season 19 2013-07-16
- Season 20 2021-02-20
- Season 21 2021-07-25
- Season 22 2021-11-28
- Season 23 2022-02-16
Season 23 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
- Season 9 Episode 21
- Season 9 Episode 22
- Season 9 Episode 23
- Season 9 Episode 24
- Season 9 Episode 25
- Season 9 Episode 26
- Season 9 Episode 27
- Season 9 Episode 28
- Season 9 Episode 29
- Season 9 Episode 30
- Season 9 Episode 31
- Season 9 Episode 32
- Season 9 Episode 33
- Season 9 Episode 34
- Season 9 Episode 35
- Season 9 Episode 36
- Season 9 Episode 37
- Season 9 Episode 38
- Season 9 Episode 39
- Season 9 Episode 40
- Season 9 Episode 41
- Season 9 Episode 42
- Season 9 Episode 43
- Season 9 Episode 44
- Season 9 Episode 45
- Season 9 Episode 46
- Season 9 Episode 47
- Season 9 Episode 48
- Season 9 Episode 49
- Season 9 Episode 50
- Season 9 Episode 51
- Season 9 Episode 52
- Season 9 Episode 53
- Season 9 Episode 54
- Season 9 Episode 55
- Season 9 Episode 56
- Season 9 Episode 57
- Season 9 Episode 58
- Season 9 Episode 59
- Season 9 Episode 60
Modern Marvels - Season 9 Episode 40 War Trains
8.00 44 minutes Examines how the great 19th-century peacetime invention developed into a powerful war machine, forever altering how, when, where, and why battles were fought. Also looks at the brave men and women who kept the military Iron Horses running, often at their own peril.
