Tug-of-War Challenge
23rd April 2005100-Meter Sprint
30th April 2005Motorboat vs. Paddle Boat
7th May 2005Public Bath Challenge
14th May 2005Dog-Paddle Swimming Challenge
21st May 2005Clothes-Washing Challenge
28th May 2005Collecting Coin Challenge
4th June 2005Stand-Up Challenge
11th June 2005Car-Washing Challenge
18th June 2005Pump Challenge
25th June 2005Digging Challenge
2nd July 2005Special Coverage from Guam - Part 1
9th July 2005Special Coverage from Guam - Part 2
16th July 2005Make-a-Noise Challenge
23rd July 2005Mosquito-Catching Challenge
30th July 2005Summer Special: The Ghost-house Challenge
6th August 2005Briquette Removal Challenge
13th August 2005Special Coverage: Top 5 Highlights of 'Reckless Challenge'
20th August 2005Car-Push Challenge
27th August 2005Drag the Sled Challenge
3rd September 2005Count 60 Seconds at High Altitude
10th September 2005Esper Ito vs. Infinite Challenge Members
17th September 2005Maria Sharapova vs. Infinite Challenge Members, Part 1
24th September 2005Maria Sharapova vs. Infinite Challenge Members, Part 2
1st October 2005Arm Wrestling Challenge
8th October 2005Applying Lipstick on Carnival Rides
15th October 2005Reckless Challenge Best Moments + Unaired Race with Ostrich Challenge Scene
22nd October 2005Infinite Challenge has been reported as the first "Real-Variety" show in Korean television history. The program is largely unscripted, and follows a similar format of challenge-based Reality Television programs, familiar to the audiences in the West, but the challenges are often silly, absurd, or impossible to achieve, so the program takes on the aspect of a satirical comedy variety show, rather than a more standard reality or contest program. In order to achieve its comedic purposes its 6 hosts and staff continuously proclaim, the elements of this show are the 3-Ds, Dirty, Dangerous, and Difficult.
