Tug-of-War Challenge
Episode: 1x01 | Airdate: Apr 23, 2005
Season 1
100-Meter Sprint
Episode: 1x02 | Airdate: Apr 30, 2005
Motorboat vs. Paddle Boat
Episode: 1x03 | Airdate: May 7, 2005
Public Bath Challenge
Episode: 1x04 | Airdate: May 14, 2005
Dog-Paddle Swimming Challenge
Episode: 1x05 | Airdate: May 21, 2005
Clothes-Washing Challenge
Episode: 1x06 | Airdate: May 28, 2005
Collecting Challenge
Episode: 1x07 | Airdate: Jun 4, 2005
Stand-Up Challenge
Episode: 1x08 | Airdate: Jun 11, 2005
Car-Washing Challenge
Episode: 1x09 | Airdate: Jun 18, 2005
Pump Challenge
Episode: 1x10 | Airdate: Jun 25, 2005
Digging Challenge
Episode: 1x11 | Airdate: Jul 2, 2005
Special Coverage from Guam - Part 1
Episode: 1x12 | Airdate: Jul 9, 2005
Special Coverage from Guam - Part 2
Episode: 1x13 | Airdate: Jul 16, 2005
Make-a-Noise Challenge
Episode: 1x14 | Airdate: Jul 23, 2005
Mosquito-Catching Challenge
Episode: 1x15 | Airdate: Jul 30, 2005
Summer Special: The Ghost-House Challenge
Episode: 1x16 | Airdate: Aug 6, 2005
Briquette Removal Challenge
Episode: 1x17 | Airdate: Aug 13, 2005
Special Coverage: Top 5 Highlights of 'Rash Challenge'
Episode: 1x18 | Airdate: Aug 20, 2005
Car-Push Challenge
Episode: 1x19 | Airdate: Aug 27, 2005
Drag the Sled Challenge
Episode: 1x20 | Airdate: Sep 3, 2005
Count 60 Seconds at High Altitude
Episode: 1x21 | Airdate: Sep 10, 2005
Esper Ito vs. Infinite Challenge
Episode: 1x22 | Airdate: Sep 17, 2005
Maria Sharapova vs. Infinite Challenge - Part 1
Episode: 1x23 | Airdate: Sep 24, 2005
Maria Sharapova vs. Infinite Challenge - Part 2
Episode: 1x24 | Airdate: Oct 1, 2005
Arm-Wrestling Challenge
Episode: 1x25 | Airdate: Oct 8, 2005
Apply Lipstick on a Carnival Ride
Episode: 1x26 | Airdate: Oct 15, 2005
Best of Season 1
Episode: 1x27 | Airdate: Oct 22, 2005
Season 2
Baseball Challenge
Episode: 2x01 | Airdate: Oct 29, 2005
Horse Racing
Episode: 2x02 | Airdate: Nov 5, 2005
Firefighting Challenge - Part 1
Episode: 2x03 | Airdate: Nov 12, 2005
Firefighting Challenge - Part 2
Episode: 2x04 | Airdate: Nov 19, 2005
Sweeper Challenge
Episode: 2x05 | Airdate: Nov 26, 2005
Mental Calculation Challenge
Episode: 2x06 | Airdate: Dec 10, 2005
Season 3
Infinite Challenge - Master of Quiz Airs
Episode: 3x01 | Airdate: Dec 17, 2005
Christmas Special
Episode: 3x02 | Airdate: Dec 24, 2005
A Year-End Special
Episode: 3x03 | Airdate: Dec 31, 2005
New Year's Day Special
Episode: 3x04 | Airdate: Jan 7, 2006
Master of Quiz
Episode: 3x05 | Airdate: Jan 14, 2006
Grandmother's House Special
Episode: 3x06 | Airdate: Jan 21, 2006
Chinese New Year Special
Episode: 3x07 | Airdate: Jan 28, 2006
Spring Special
Episode: 3x08 | Airdate: Feb 4, 2006
St. Valentine's Day Special
Episode: 3x09 | Airdate: Feb 11, 2006
School Graduation Special
Episode: 3x10 | Airdate: Feb 18, 2006
Lee Hyori Special - Part 1
Episode: 3x11 | Airdate: Feb 25, 2006
Lee Hyori Special - Part 2
Episode: 3x12 | Airdate: Mar 4, 2006
Beginning School Special
Episode: 3x13 | Airdate: Mar 11, 2006
20th Episode Special
Episode: 3x14 | Airdate: Mar 18, 2006
Camping Special
Episode: 3x15 | Airdate: Mar 25, 2006
April Fools' Day Special
Episode: 3x16 | Airdate: Apr 1, 2006
Black Day Special
Episode: 3x17 | Airdate: Apr 8, 2006
New York Special
Episode: 3x18 | Airdate: Apr 15, 2006
China Special
Episode: 3x19 | Airdate: Apr 22, 2006
Yi Sun-sin Birthday Special / Lee Young-ae Special Event
Episode: 3x20 | Airdate: Apr 29, 2006
The episode list was truncated because of the large number of episodes. Visit the seasons page to see individual seasons' episode guides.