S12 Episode 1
Poison
44 mins · Wed, 5 Jan 2005
S12 Episode 2
Car Tech of the Future
44 mins · Thu, 6 Jan 2005
S12 Episode 3
The Arch
44 mins · Wed, 12 Jan 2005
S12 Episode 4
More Nature's Engineers
44 mins · Tue, 18 Jan 2005
S12 Episode 5
World's Biggest Machines 3
44 mins · Wed, 26 Jan 2005
S12 Episode 6
The Butcher
44 mins · Tue, 1 Feb 2005
S12 Episode 7
Blackbird Stealth
44 mins · Fri, 4 Feb 2005
S12 Episode 8
George Washington Carver Tech
44 mins · Tue, 15 Feb 2005
S12 Episode 9
Firefighting!: Extreme Conditions
44 mins · Tue, 15 Feb 2005
S12 Episode 10
Desert Tech
44 mins · Wed, 23 Feb 2005
S12 Episode 11
Sub Zero Tech
44 mins · Wed, 23 Feb 2005
S12 Episode 12
The Great Bridge: 8 Miles of Steel
44 mins · Wed, 23 Feb 2005
S12 Episode 13
Howard Hughes Tech
44 mins · Mon, 28 Feb 2005
S12 Episode 14
Edwards Air Force Base
44 mins · Wed, 2 Mar 2005
S12 Episode 15
Taxidermy
44 mins · Wed, 9 Mar 2005
S12 Episode 16
SWAT
44 mins · Wed, 9 Mar 2005
S12 Episode 17
Deadliest Weapons
44 mins · Wed, 16 Mar 2005
S12 Episode 18
The Doomsday Clock
44 mins · Thu, 7 Apr 2005
S12 Episode 19
The Basement
44 mins · Tue, 26 Apr 2005
S12 Episode 20
Paint
44 mins · Wed, 27 Apr 2005
S12 Episode 21
Mega Movers
44 mins · Wed, 27 Apr 2005
S12 Episode 22
Punishment
44 mins · Thu, 28 Apr 2005
S12 Episode 23
Bricks
44 mins · Wed, 11 May 2005
S12 Episode 24
Glue
44 mins · Wed, 18 May 2005
S12 Episode 25
F/A-22 Raptor
44 mins · Fri, 20 May 2005
S12 Episode 26
Civil War Tech
44 mins · Wed, 25 May 2005
S12 Episode 27
Machines of D-Day
44 mins · Fri, 3 Jun 2005
S12 Episode 28
John Hancock Center
44 mins · Wed, 8 Jun 2005
S12 Episode 29
The Cape Cod Canal
44 mins · Wed, 15 Jun 2005
S12 Episode 30
Secret Japanese Aircraft of World War II
44 mins · Thu, 16 Jun 2005
S12 Episode 31
Private Collections
44 mins · Sun, 19 Jun 2005
S12 Episode 32
Future Tech
44 mins · Wed, 22 Jun 2005
S12 Episode 33
Edison Tech
44 mins · Wed, 29 Jun 2005
S12 Episode 34
Secrets of Soviet Space Disasters
44 mins · Fri, 1 Jul 2005
S12 Episode 35
Mountain Roads
44 mins · Tue, 5 Jul 2005
S12 Episode 36
Cowboy Tech
44 mins · Wed, 20 Jul 2005
S12 Episode 37
Sewers
44 mins · Wed, 27 Jul 2005
S12 Episode 38
Challenger Tank
44 mins · Fri, 29 Jul 2005
S12 Episode 39
World's Biggest Machines 4
44 mins · Tue, 2 Aug 2005
S12 Episode 40
Dredging
44 mins · Wed, 3 Aug 2005
S12 Episode 41
Lube Job
44 mins · Wed, 10 Aug 2005
S12 Episode 42
Secret Luftwaffe Aircraft of World War II
44 mins · Wed, 17 Aug 2005
S12 Episode 43
Route 66
44 mins · Wed, 24 Aug 2005
S12 Episode 44
The World's Fastest
44 mins · Wed, 24 Aug 2005
S12 Episode 45
The B-2 Stealth Bomber
44 mins · Fri, 26 Aug 2005
S12 Episode 46
High Risk: Helicopter Lineman
44 mins · Wed, 31 Aug 2005
S12 Episode 47
Wiring America
44 mins · Wed, 31 Aug 2005
S12 Episode 48
Nature Tech: Lighting
44 mins · Wed, 31 Aug 2005
S12 Episode 49
HMS Victory
44 mins · Fri, 2 Sep 2005
S12 Episode 50
Engineering an Empire: Rome
44 mins · Tue, 13 Sep 2005
S12 Episode 51
Coffee
44 mins · Wed, 14 Sep 2005
S12 Episode 52
Sugar
44 mins · Wed, 14 Sep 2005
S12 Episode 53
Cereal: History in a Bowl
44 mins · Wed, 14 Sep 2005
S12 Episode 54
F-117 Nighthawk Stealth
44 mins · Thu, 22 Sep 2005
S12 Episode 55
German Small Arms of World War II
44 mins · Sat, 24 Sep 2005
S12 Episode 56
The Auto Shop
44 mins · Wed, 5 Oct 2005
S12 Episode 57
Secret Allied Aircraft of World War II
44 mins · Fri, 14 Oct 2005
S12 Episode 58
Engineering Disasters 17
44 mins · Wed, 2 Nov 2005
S12 Episode 59
Brewing
44 mins · Wed, 16 Nov 2005
S12 Episode 60
The Lumberyard
44 mins · Wed, 30 Nov 2005
S12 Episode 61
Da Vinci Tech
44 mins · Sun, 4 Dec 2005
S12 Episode 62
Custom Cars
44 mins · Mon, 5 Dec 2005
S12 Episode 63
More Hardware
44 mins · Tue, 6 Dec 2005
S12 Episode 64
Weird Weapons: The Allies
44 mins · Sat, 17 Dec 2005
S12 Episode 65
More Snack Food Tech
44 mins · Tue, 20 Dec 2005
S12 Episode 66
Walt Disney World
44 mins · Sun, 25 Dec 2005
S12 Episode 67
Nature Tech: Hurricanes
44 mins · Thu, 29 Dec 2005