Season 15 aired between 31 Oct 2008 and 29 Dec 2010, 44 episodes.
Episodes
E01
Dirt
14 Jan 2010
E02
Eggs
21 Jan 2010
E03
The Potato
28 Jan 2010
E04
Tuna
04 Feb 2010
E05
Winter Tech
11 Feb 2010
E06
Chrome
02 Mar 2010
E07
Start to Finish
04 Mar 2010
E08
Beans
11 Mar 2010
E09
Hot & Spicy
18 Mar 2010
E10
Mega Meals
25 Mar 2010
E11
Fry It
01 Apr 2010
E12
Soft Drinks
08 Apr 2010
E13
Deliver It
15 Apr 2010
E14
Super Ships
29 Apr 2010
E15
Big & Small
06 May 2010
E16
Breaking Point
13 May 2010
E17
Keep Out
20 May 2010
E18
Steam Power
27 May 2010
E19
Doors
03 Jun 2010
E20
The Real National Treasure: The Library of Congress
10 Jun 2010
E21
Top Ten Tech Innovations
17 Jun 2010
E22
Most Extreme Airports
20 Jul 2010
E23
Mega Stores
29 Oct 2010
E24
Supersized Food
05 Nov 2010
E25
Coin Operated II
12 Nov 2010
E26
Engineering Disasters 22
19 Nov 2010
E27
Dogs
26 Nov 2010
E28
Built to Last
03 Dec 2010
E29
Secret Underground
10 Dec 2010
E30
Made in the USA
17 Dec 2010
E31
Driver's Seat
21 Dec 2010
E32
Rice
29 Dec 2010
E33
Halloween Tech
31 Oct 2008
E34
The Horse
19 Nov 2008
E35
The Turkey
24 Nov 2008
E36
Salt
01 Dec 2008
E37
Car Wash
08 Dec 2008
E38
Retro Tech
19 Dec 2008
E39
Super Human
22 Dec 2008
E40
Measure It
23 Dec 2008
E41
Night
26 Dec 2008
E42
Fry It
10 Feb 2009
E43
Mega Meals
17 Feb 2009
E44
Library of Congress
19 Feb 2009