Record Breakers, Ridiculous Theories, In Sickness & In Health
Episode: 2x15 | Airdate: May 6, 2013
Season 2
Fact or Fiction, Oddities, Identify This
Episode: 2x16 | Airdate: May 13, 2013
Mystery Solved, Globetrotting, On The Menu
Episode: 2x17 | Airdate: Jul 8, 2013
Origins, Untold History, Inventions
Episode: 2x18 | Airdate: Jul 15, 2013
Season 3
In Sickness & In Health, Fact or Fiction, Who Said That?
Episode: 3x01 | Airdate: Sep 16, 2013
What's In A Name?, Get Creative, Identify This
Episode: 3x02 | Airdate: Sep 23, 2013
Ridiculous Theories, Untold History, Origins
Episode: 3x03 | Airdate: Sep 30, 2013
Mystery Solved, Problem and Solution, Record Breakers
Episode: 3x04 | Airdate: Oct 7, 2013
Globetrotting, Now and Then, What It's Worth
Episode: 3x05 | Airdate: Oct 14, 2013
What's In a Name, Untold History, In Sickness & In Health
Episode: 3x06 | Airdate: Oct 21, 2013
Supernatural, Bad Ideas, On The Menu
Episode: 3x07 | Airdate: Oct 28, 2013
What Might Have Been, Oddities, Myths
Episode: 3x08 | Airdate: Nov 4, 2013
Globetrotting, Get Creative, Identify This!
Episode: 3x09 | Airdate: Nov 11, 2013
Mad Science, Claim To Fame, Oddities
Episode: 3x10 | Airdate: Nov 18, 2013
Ridiculous Theories, Mystery Solved, Problem and Solution
Episode: 3x11 | Airdate: Jan 20, 2014
Myths, Record Breakers, Surprising Stats
Episode: 3x12 | Airdate: Jan 27, 2014
Myths about a pen; the space race; the world's most expensive book; the fastest ascent of Mount Everest; amusement parks.
Now and Then, Identify This, Into The Wild
Episode: 3x13 | Airdate: Feb 3, 2014
What Could Have Been, What It's Worth, Globetrotting
Episode: 3x14 | Airdate: Feb 10, 2014
Inventions, Bad Ideas, The World in Numbers
Episode: 3x15 | Airdate: Feb 17, 2014
In Sickness & In Health, Claim to Fame, Untold History
Episode: 3x16 | Airdate: Apr 7, 2014
Fact or Fiction, Myths, Origins
Episode: 3x17 | Airdate: Apr 14, 2014
Record Breakers, Oddities, In Sickness & In Health
Episode: 3x18 | Airdate: Apr 21, 2014
Globetrotting, Problem & Solution, Identify This
Episode: 3x19 | Airdate: Apr 28, 2014
What Could Have Been, Bad Ideas, Now and Then
Episode: 3x20 | Airdate: May 5, 2014
Mad Science, Who Said That, Claim to Fame
Episode: 3x21 | Airdate: May 12, 2014
Myths, World In Numbers, Fact or Fiction
Episode: 3x22 | Airdate: May 19, 2014
Season 4
Globetrotting, Identify This, Untold History
Episode: 4x01 | Airdate: Sep 15, 2014
What Might Have Been, Problems and Solutions, The World in Numbers
Episode: 4x02 | Airdate: Sep 22, 2014
Supernatural, Record Breakers, In SIckness & In Health
Episode: 4x03 | Airdate: Sep 29, 2014
Mad Science, Myths, Surprising Stats
Episode: 4x04 | Airdate: Oct 6, 2014
Mad Science, On The Brain, The World in Numbers
Episode: 4x05 | Airdate: Oct 27, 2014
Now and Then, Into The Wild, Surprising Stats
Episode: 4x06 | Airdate: Nov 3, 2014
Oddities, Get Creative, Untold History
Episode: 4x07 | Airdate: Nov 10, 2014
Mystery Solved, Problem and Solution, Bad Ideas
Episode: 4x08 | Airdate: Nov 17, 2014
Identify This, In Sickness and in Health, Ridiculous Theories
Episode: 4x09 | Airdate: Feb 2, 2015
Globetrotting, Origins, On the Menu
Episode: 4x10 | Airdate: Feb 9, 2015
Claim to Fame, Bad Ideas, Now and Then
Episode: 4x11 | Airdate: Feb 16, 2015
Inventions, Who Said That?, In Sickness and In Health
Episode: 4x12 | Airdate: Feb 23, 2015
Myths, Get Creative, Problem and Solutions
Episode: 4x13 | Airdate: Apr 6, 2015
Origins, Record Breakers, Bad Ideas
Episode: 4x14 | Airdate: Apr 13, 2015
Mystery Solved, What Could Have Been, Into the Wild
Episode: 4x15 | Airdate: Apr 20, 2015
Globetrotting, Bad Ideas, Identify This
Episode: 4x16 | Airdate: Apr 27, 2015
What's In a Name, In Sickness and In Health, Inventions
Episode: 4x17 | Airdate: May 4, 2015
Mad Science, Now and Then, Fact or Fiction
Episode: 4x18 | Airdate: May 11, 2015
Season 5
On the Brain, Health & Fitness, Dinosaurs
Episode: 5x01 | Airdate: Sep 14, 2015
Get Creative, Identify This, Bad Ideas
Episode: 5x02 | Airdate: Sep 21, 2015
Extreme Sports, Inventions, Problems & Solutions
Episode: 5x03 | Airdate: Sep 28, 2015
Supernatural, Untold History, The World in Numbers
Episode: 5x04 | Airdate: Oct 26, 2015
What's in a Name?, Oddities, Identify This!
Episode: 5x05 | Airdate: Nov 2, 2015
Ridiculous Theories, The World in Numbers, Claim to Fame
Episode: 5x06 | Airdate: Nov 9, 2015
Now and Then, Untold History, What It's Worth
Episode: 5x07 | Airdate: Nov 16, 2015
In Sickness and in Health, bad Ideas, Origins
Episode: 5x08 | Airdate: Nov 23, 2015
Mad Science, Oddities, Origins
Episode: 5x09 | Airdate: Jan 25, 2016
Globetrotting, Home Sweet Home, The World in Numbers
Episode: 5x10 | Airdate: Feb 1, 2016
Inventions, Identify This!, Extreme Sports
Episode: 5x11 | Airdate: Feb 8, 2016
Into the Wild, Claim to Fame, Now and Then
Episode: 5x12 | Airdate: Apr 18, 2016
Animals in the military; some of the world's most famous museums; the hospitality industry.
Who Said That?, What Could Have Been, Surprising Stats
Episode: 5x13 | Airdate: Apr 25, 2016
Famous sayings; some of history's most influential people; what life could have been without coffee; statistics about travel.
Mad Science, Get Creative, Fact or Fiction
Episode: 5x14 | Airdate: Jun 27, 2016
A natural gas that can sink a ship; patents held in Thomas Edison's name; inventions.
Lights-Camera-Action, Get Creative, Record Breakers
Episode: 5x15 | Airdate: Jul 4, 2016
The state that celebrates Popcorn Day; what a didgeridoo is; the largest orchestra ever to play.
Mystery Solved, Ridiculous Theories, Supernatural
Episode: 5x16 | Airdate: Jul 11, 2016
America's first spy ring; intelligence-gathering machines; the real James Bond.
Myths, Claim to Fame, What It's Worth
Episode: 5x17 | Airdate: Jul 18, 2016
Notorious pirates; what a blunderbuss is; what a pirate's buried treasure would be worth today.
On the Brain, On the Menu, On the Edge
Episode: 5x18 | Airdate: Jul 25, 2016
Mysteries of the mind; the history of the hamburger; death-defying acts.
Season 6
Mad Science, Inventions, Bad Ideas
Episode: 6x01 | Airdate: Oct 17, 2016
Bizarre therapies; how an in-ear thermometer detects temperature; bad ideas about cleaning.
Globetrotting, Get Creative, Problem & Solution
Episode: 6x02 | Airdate: Oct 24, 2016
How New York got its nickname; chewing-gum sculptures; creative solutions to NASA's problems in space.
Now and Then, Identify This, Surprising Stats
Episode: 6x03 | Airdate: Oct 31, 2016
Prehistoric dentists; identifying cool animals; smartphone statistics.
Inventions, In Sickness & In Health, Dinosaurs
Episode: 6x04 | Airdate: Nov 7, 2016
Why an extra month was added to the calendar; diseases that affect both humans and animals; the size of a stegosaurus brain.
Extreme Sports, Into the Wild, Origins
Episode: 6x05 | Airdate: Nov 14, 2016
A high-altitude race; animals in myths and folklore; a military invention.
Oddities, Health & Fitness, The World In Numbers
Episode: 6x06 | Airdate: Nov 21, 2016
Odd acts in traveling sideshows; how long it takes to feel the effects of caffeine; the origins of Wall Street.
Get Creative, What Could Have Been, Ridiculous Theories
Episode: 6x07 | Airdate: Jan 30, 2017
The first flying device that could carry people; doomsday prophecies; a theory involving water.
Mad Science, Problem & Solution, Bad Ideas
Episode: 6x08 | Airdate: Feb 6, 2017
What a Jacob's ladder is; ways to keep pesky insects out; why fluoroscopes were a bad idea in shoe stores.
On the Brain, Oddities, Extreme Sports
Episode: 6x09 | Airdate: Feb 13, 2017
The amount of neurons in the human brain; oddities in geometric figures; an extreme sport brought on by a California drought.