E1 - Kid Jobs

Aired: October 09, 2004

E2 - Home on the Range

Aired: October 16, 2004

E3 - Lost in the Stars

Aired: October 23, 2004

E4 - School

Aired: October 30, 2004

E5 - Hot Chocolate

Aired: November 06, 2004

E6 - Romans

Aired: November 13, 2004

E7 - Heroes

Aired: November 20, 2004

E8 - News

Aired: December 04, 2004

E9 - Revolutions

Aired: January 08, 2005

E10 - Who is Marco Polo?

Aired: January 15, 2005

E11 - Down on the Farm

Aired: January 22, 2005

E12 - Real Or Not Real

Aired: January 29, 2005

E13 - Ancient Genius

Aired: February 05, 2005

E14 - Explorers

Aired: February 12, 2005

E15 - A Soldier's Life

Aired: February 26, 2005

E16 - Dangerous Women

Aired: March 05, 2005

E17 - Flat Earth Society

Aired: March 12, 2005

Alex challenges some accepted truths of science.

E18 - Fun and Games

Aired: March 19, 2005

E19 - History's Biggest Mistakes

Aired: March 26, 2005

E20 - Who Discovered North America?

Aired: April 01, 2005

E21 - Can You Dig It?

Aired: April 09, 2005

E22 - Flight

Aired: April 16, 2005

E23 - Dark Ages

Aired: April 23, 2005

E24 - Great Disasters

Aired: May 07, 2005

E25 - Short History Of Time

Aired: May 21, 2005

E26 - Tyrants

Aired: June 18, 2005

E27 - Bikes

Aired: July 09, 2005