List of Infinite Challenge episodes

• A tug-of-war challenge (Muhan Dojeon Members vs. a bull)

• 100-meter sprint (Muhan Dojeon Members vs. a train from Seoul Metropolitan Subway)

• Motor Boat vs Paddle Boat (swan shaped-for Muhan Dojeon Members) challenge on the somewhere of Han River

• Public Bath Challenge (Natural speed vs. dipping water with a gourd dipper by Muhan Dojeon Members)

• Dog-paddle Swimming Challenge (Muhan Dojeon Members vs. a Rescue dog)

• Clothes-washing Challenge (Handwash by Muhan Dojeon Members vs. Electronic Dehydrator)

• Collecting Challenge (Electronic Coin Collector vs. Handwork by Muhan Dojeon Members)

• Stand-up Challenge (A Muhan Dojeon Member should not be apart within a small circle during a bus drive.)

• Car-washing Challenge (Handwork by Muhan Dojeon Members vs. An automatic car-washing machine)

• Pump Challenge (Handwork by Muhan Dojeon Members vs. An automatic water-pump)

• Shovel challenge (Handwork by Muhan Dojeon Members vs. Excavator)

• Special Coverage from Guam - Part 1

• Special Coverage from Guam - Part 2

• Make-a-noise Challenge (Extremely loud voice of Muhan Dojeon Members vs. A siren used by fire-fighting service)

• Mosquito-Catching Challenge (A mosquito repellant vs. Handwork by Muhan Dojeon Members)

• Summer Special; The Ghost-house challenge

• Briquet-remove Challenge (with Korean actor Cha Seung-won)

• Special Coverage; Top 5 Highlights of 'Rashless Challenge'

• Car-push Challenge (Handwork by Muhan Dojeon Members vs. Bulldozer)

• Drag the sled Challenge (Handwork by Muhan Dojeon Members vs. Sled dogs)

• Count the 60 seconds in the sky

• Esper Ito (Japanese comedian) vs. Muhan Dojeon Members

• Maria Sharapova (Russian Tennis player) vs. Muhan Dojeon Members - Part 1

• Maria Sharapova (Russian Tennis player) vs. Muhan Dojeon Members - Part 2

• Arm-wrestling Challenge (Muhan Dojeon Members vs. High-school girl)

• Wear the lipstick on the lip on Carnival rides

• Final Season 1 Highlight

• Baseball Challenge (Muhan Dojeon Members vs. Baseball Team of Bae-myeong Senior High School)

• Racing Challenge (A horse vs. A run by Muhan Dojeon members)

• Fire-fighting Challenge Part 1

• Fire-fighting Challenge Part 2

• Sweep (of fallen leaves) Challenge (Automatic Sweeping Car vs. Sweepwork by Muhan Dojeon Members)

• 'Mental Calculation' Challenge (The Civil Master vs. Muhan Dojeon Members)

• 'Infinite Challenge-Master of Quiz' went on air.

• Christmas Special

• A Year-end Premiere Special

• New Year's Day Special

• Master of Quiz

• Grandmother's house Special

• Chinese New Year Day's Special

• Spring Special

• St. Valentine's Day Special

• School Graduation Special

• Lee Hyori (Korean singer) Special - Part 1

• Lee Hyori (Korean singer) Special - Part 2

• Beginning School (Other title: Super blame Special) Special

• Episode 20th Special

• Camping Special

• April Fool Day Special

• Black Day Special

• New York Special

• China Special

• Yi Sun-sin (Korean ancient general)'s Birthday Special

• Golf (putting) Challenge (Michelle Wie vs. Muhan Dojeon Members) - Part 1

• Golf (putting) Challenge (Michelle Wie vs. Muhan Dojeon Members) - Part 2

• Space Special (in their studio)

• Wedding Ceremony Special (in their studio)

• World Cup 2006 (Special Coverages) - Part 1, World All-stars (starring)
  • Jeong Hyeong-don as (Referee) Byron Moreno
  • Ha Ha as David Beckham
  • Park Myeong-su as Zinedine Zidane
  • Jeong Jun-ha as Ahn Jung-Hwan
  • Roh Hong-cheol as Carlos Valderrama
  • Yu Jae-seok as Ronaldinho

• World Cup 2006 - Part 2, Preparing and Cheering of the match 'Korea Republic vs Togo'vs

Cheering (Korea Republic National Squad) segments were filmed in somewhere, with all Muhan Dojeon Members on the day of the match, exactly.

• World Cup 2006 - Part 3, Preparing and Cheering of the match 'Korea Republic vs France'vs

• World Cup 2006 - Part 4, Preparing and Cheering of the match 'Korea Republic vs Switzerland'vs

• Summer Special Challenges (Part 1) - in swimming pools which named 'Hawaii'.

• Summer Special Challenges (Part 2) - in swimming pools which named 'Bali'.

• Quiz Challenge with Shinhwa (K-pop Idol Group) - Part 1

• Quiz Challenge with Shinhwa - Part 2

• Summer Evening Features (Part 1) - Abolished School (on the somewhere of Korean countryside)

• Summer Evening Features (Part 2) - Deserted House on the countryside

• 'The Fellowship Of Ice' in Queenstown, New Zealand - Part 1

• 'The Two Hot Springs' in Queenstown, New Zealand - Part 2

• 'The Return of the Bare-Faces' in Queenstown, New Zealand - Part 3

• Wrestling Challenges Part 1 - Muhan Dojeon members vs. Fedor Emelianenko

• Wrestling Challenges Part 2 with Fedor Emelianenko

• Please, be friendly (Part 1) - A 'break-the-ice' project to built a strong relationship between Ha Ha and Jeong Hyeong-don

• Please, be friendly (Part 2)

• 2-hour Thanksgiving (Hahn-ga-wi) Holidays Special

• Title: Hyeong-don, Let's play!
• Occupation (as proposed): to visit one of the Muhan Dojeon Members' House unexpectedlyly, and to have fun at the member's house.
• Contents: Massive Clean-up for Hyeong-don and his house has been done (during episodes).

• Autumn Picnic Special

• Farming Village Special

• Kim Su-ro (Korean actor) Special (Please to be fooled!) - Part 1

• Kim Su-ro (Korean actor) Special (Please enough to be fooled) - Part 2, Also Testing Special was aired after the second part. Each member were given an exam to take. Jeonh Jun-Ha and Jeong Hyeong-Don received 59 (1st place) Yu Jae-Seok received 58 (3rd) Park Myeong-Su with 42 (4th) Roh hong-Cheol with 37 (5th place) and Ha Ha received 22 (6th) after filming, their exams were posted in MBC lobby

• "Muhan 'Dojeon! Supermodel'" with Fashion Designer Lie Sang Bong' - Part 1 (Highlights of 2-week preparation)

• "Muhan Dojeon! Supermodel'" - Part 2 (Rehearsal and (Actual) Runway Show)

• Kimchi preparation challenges

• Youth Athletic Tournament Special

• Christmas Special - Part 1

• Christmas Special - Part 2

• A Year-end Special; The 1st Muhan Award Ceremony

• Title: New-year special. Contents:
• 1. The sequel of '2006 MBC Broadcast & Entertainment Award' (filmed on midnight at Park Myeong-su's own chicken restaurant)
• 2. New Year's Day Special; Please, remove the staled-dirts! (about some various challenges happened in public spa)

• Title: Roh Hong-cheol's X-Files - Who is the 'Red High-heel'?
• Occupation (as proposed): Visit Hong-cheol's House to find his undefined girlfriend.
• Contents: In contrast of Hyeong-don's house (S03E23), Hong-cheol's house was extremely clean and well-decorated. Moreover, all of the housework has been done by himself (as Hong-cheol strongly proclaimed).

• 'Muhan Doctors' - Examining the health condition of Jeong Hyeong-don, who was seriously ill at that moment.
• 2007 Year-start Special; Finding Sa-ju for each of the Muhan Dojeon Members.

• 1970s~1980s Special at the Roller link

• Special English (language) Study Challenge (short-term immersion) - in Gyeong-gi English Village

• Alaska Special (Title of challenges)

• 2007 Chinese New Year's Day Special

• MBC Muhan Dojeon's 100-minute Debate
  • Theme: "Is there a possibility of Muhan Dojeon Members to become the next Korean Wave (Han-ryu) Star?"
  • Moderator: Yu Jae Seok (Host-in-chief, as always.)
    Yes-blog: Jeong Jun-ha, Ha Ha, Roh Hong-cheol.
    No-blog: Park Myeong-su, Jeong Hyeong-don
• Golden-pig year Special Challenges

• As a cultural belief, Many of Korean people believes that the 'Golden Pig' will bring more money (or assets).

• Beginning the school Special: 'Muhan Dojeon Becomes Teachers"

• Making-a-drama Challenge Part 1 - Special guidance with Kim Su-ro (Korean Actor, as a director in this Drama Challenge)

• Making-a-drama Challenge Part 2
  • Casting show with Kim Su-ro
  • Film-making process with Korean entertainer Lee Hyo-ri (as a leading actress in this Drama Challenge)

• Making-a-drama Challenge Part 3 - aired the 1st part of their TV drama called 'Romance'

• Making-a-drama Challenge Part 4 - aired the 2nd part of 'Romance'
• At the end of this episode, 'Big Star (Geo-seong) Show' was performed. Jeong Hyeong-don showed his ability about some extra Circus challenges well. However, the main performer Park Myeong-su ran and fade away from the set.

• Jeong Jun-ha Surprise (Hidden) Camera & 'Big Star (Geo-seong) Dance & Hyeong-don, Let's Move! (Part 1)

• Hyeong-don, Let's Move! (Part 2) - Surprise visit of Hyeongdon's house, to help Hyeong-don to move to a new house. Eventually, it turned into a disaster when Jeong Jun-ha broke a number of plates and the other members became exhausted.
• Hanamana Song Feast I - The members took themselves to places where they performed the Hanamana song. The places included a baseball stadium (to celebrate the college-baseball match), brand-new glasses-shop (to promote new store), and a public fomentation centre.

• 1st anniversary (of Season 3) special - to celebrate airing the 50th episode of Muhan Dojeon
  • Truth Camera - finding a secret mind and things of each members
  • 50 - Special challenges for anything that relates to the number 50. Only Jeong Jun-ha succeed.
    • Jeong Jun-ha ('s challenge) - eat 50 small dishes of Garak-guksu within 300 seconds. After his mission was accomplished, all of the members were fully respected to him. However, he had to go straight to the lavatory and sleep at the outside of studio.
    • Ha Ha - to mark more than 50 points right out of 100 (5/10 questions), in an elementary-leveled Korean (language)'spelling bee' test. It resulted in a 20-point score.
    • Roh Hong-cheol - to wear 50 clothes within 300 seconds. He managed to wear 27.
    • Park Myeong-su - rope-jumping 50 times with wearing a shoe which was a pair of chicken-shaped foot. 33 was accomplished.
    • Yu Jae-seok - presenting anything within 50 seconds (marginal error of 1 seconds accepted)

• 1st anniversary (of Season 3) special - 50 Continued as a group-challenge. Although their preparation was tough, their mission was accomplished, eventually.
• Muhan Girls' (senior) High School - To challenge a traditional culture of the average Korean teen-girls.

• Lee Young-ae in Muhan Dojeon: When Jae-seok finds out that he is filming a bank commercial with renowned actress Lee Young Ae, he calls the members to come meet her. Although they are skeptical, they all arrive, except for Ha-ha. They then watch the filming of the commercial and conduct a short interview with her.

• 'Bong-chun Circus' challenges

• Muhan Miss Korea (starring)
  • 1. Jeong Hyeong-mi, Miss Busan Jin
  • 2. Jeong Jun-yeon, Miss Seoul Seon
  • 3. Yu Jae-ni, Miss Seoul Jin
  • 4. Park Ji-min, Miss Jeonbuk Jin
  • 5. Ha Mo-nie, Miss Gurapa (means Europe in Korean) Jin
  • 6. Roh Hong-ryeh, Miss Chungnam Jin
• Choi Ji-woo in Muhan Dojeon

• Hanamana Song Feast II; The members took themselves to places where they performed the Hanamana song. The places included a kindergarten, a wedding festival and Yonsei University student's festival.

• Rice-planting Special

• FC Muhan Dojeon vs.Thierry Henry - Part 1

• FC Muhan Dojeon vs.Thierry Henry - Part 2

• A Desert-Island Special from El Nido, Phllipines - Part 1, The Curse of the black pearl

• A Desert-Island Special from El Nido, Phllipines - Part 2, at world's end (with some extra survival Challenges)

• Introducing a new cult of "Muhan Jae Seok-gyo" (Clay-animated 'conte')
• A bargain is a bargain - As promised (S03E58), Roh Hong-cheol's hairstyle has been finally changed. Everyone was shocked.
• 'North Gangbyeon Road' Song Festival (강변북로가요제) - Part 1

• 'North Gangbyeon Road' Song Festival - Part 2 (Performances and Results; see below)
  • Special Chorus Performance (by its Members) - "Muhan Dojeon Forever", Remaked version of "That Thing You Do!"
  • Popular Award - Park Myeong-su's "I love you"
  • Bronze - Jeong Hyeong-don's "Doing like this"
  • Silver - Yu Jae-seok's "Allure of Samba" (쌈바의 매력) feat. Roh Garcia
  • Gold - Jeong Jun-ha's "My Way"
  • Grand prix - Ha Ha's "A Story of Shorty-heightened boy" (키작은 꼬마 이야기)
  • Weeping-eyes (Award) - Hyeong-don's "Doing like this" (이러고 있다)
    and Roh Hong-cheol's "Girl" (소녀)
• Muhan Dojeon's "24" (Part 1) - One whole-day adventures at the MBC. Including:
  • Examination of each Muhan Dojeon Members' camping supplies for the opening of "Muhan Dojeon's 24", which started at exactly 00:00 (on the midnight).
  • Joined a part of the radio (MBC FM4U) broadcast called "Blue Night", presented by Sung Si Kyung (성시경, K-pop Singer)
  • Visited a producing booth of Muhan Dojeon

• Muhan Dojeon's "24" (Part 2)
  • Voluntary Security Service on the midnight at MBC's headquarters.
    • Team Jeong Jun-ha and Jeong Hyeong-don: Parking lot (to bring their Ramyeons)
    • Team Yu Jae-seok and Ha Ha: Property and Dressing room (to bring a burner and their dress)
    • Team Park Myeong-su and Roh Hong-cheol: Patrolling outside of MBC Headquarters (they actually deserted and ate ramen and slept in their tent)
  • Ridiculous Outdoor-camping at the lobby - employees of the MBC were shocked.
• Midsummer-day (Korean: Bock-nal, 복날) Special
  • Food Lotto - a challenger picks 6 numbers (ingredients-which was hidden) randomly, mixed them all by members at next room. Challenger should eat the mixed cocktail and make a list of ingredients correctly. aired Roh Hong-cheol's and Jeong Jun-ha's one.
  • Cooking Challenge (Muhan Dojeon vs. Dae Jang Geum)
    • Team Yu Jae-seok and Park Myeong-su's: Samgyetang and Fried Chicken
    • Team Ha Ha and Jeong Hyeong-don's: Grilled eels (voted 'the worst')
    • Team Jeong Jun-ha and Roh Hong-cheol's: Panbroiled octopus seasoned with red pepper (voted 'the best')

• Comedy 'Silmido' Special - Make laugh to live (웃겨야 산다)
  • Make laugh to live - All members have to make laugh with any supplies, otherwise, they should go straight for punishment.
  • Mud-wrestling - a Coup d'état happened by the 2nd member Park Myeong-su to jump a seat of the host-in-chief (Yu Jae-seok). However, the executive producer 'Teo' (Kim Tae-ho) argued (with a wit) at the end of this segment that "Does anyone who really wanna watch Muhan Dojeon, hosted by Park Myeong-su?"
  • Saving Private 'Banana' - This is an active challenge to catch a banana with riding 2-stripe. All members and staff were later recognized that this segment was focused on more gags.
  • Finding my mother - Na Mun-hee, the cast of High Kick! (the mother-in-role of Lee Jun-ha) visited to encourage this programme.

• 'American Old West' Special
  • Muhan News - Muhan Sucheop (In-depth report); to find the reason of lateness of Jeong Jun-ha
  • Jun-ha Rodeo - After bored of electronic rodeo machine, they create a new way of riding Rodeo by Jun-ha. Due to his superb power from his body, everyone who rode upon his backside was enjoyed.
  • Gunman on the sunset - 1:1 match, to fight with their toy-gun. The one who succeed shooting anything (water, inky water, etc) to other contender is a winner.
  • 'Steal the gold' - A challenger should go to the bank as a thief. Within 60 seconds, challenger must find 1 exact box (of 'golden key', presented by the CEO of MBC) out of 30. However, every mission wasn't accomplished.

• Water-boys Special (outdoor swimming pool)
  • 1 m Diving Contest - Filmed more than 3 hours (but aired roughly 10 minutes). Korean comedian Lee Kyeong-kyu (이경규) and his daughter Yeh-lim (이예림) visited that site, however, they eventually left, due to the members' fall-back.
  • Birdman Contest - The winner Jeong Jun-ha (with super-sized parasol) marked 0.99 second in the air.
  • 50 m freestyle swimming Match - Gold (medalist): Jeong Jun-ha, Silver:Ha Ha, Bronze: Roh Hong-cheol. The format of this challenge has been changed to the Underwater-racewalk, due to the huge loss of their body strength.
  • Flying Chair Survival
    • Part 1 - Roulette Challenge; even the final survivor Jeong Jun-ha had to be jumped into water.
    • Part 2 - Top-pose Contest (while flying)
      • Hyeong-don: Performed his trademark, Shaky Dance (진상댄스)
      • Hong-cheol: p.h.t, Low-quality Dance (저질댄스)
      • Ha Ha: p.h.t, Shorty Dance (단신댄스)
      • Jae-seok & Myeong-su: Talking friendly in the air (공중대화)
      • Jun-ha: eat a piece of watermelon, as The Lord of Eating.
• A Bargain is a Bargain - Claiming the truth of Roh Hong-cheol's youth, in the Songdo Sea-bath. He said in the beginning of the show that he, a former member of Korean YMCA's Junior Sports Team (YMCA 아기스포츠단), swam from the middle of sea to the beach in his youth. So that, the staff decided to prove his argument. Finally, it was proved wrong (he failed to manage his pace in the middle of Bay of Gyeonggi to reach Songdo beachside).^[7]

• Seoul city touring race - First come, first served ('서울구경 선착순 한명', Part 1, Individual races)
  • Rule: All members of Muhan Dojeon should travel with their 5000won (about 5.5US$ or 4€) -valued (Seoul Metropolitan) transportation card, from their home to go to Palgakjeong, Namsan (남산 팔각정, near N Seoul Tower) by themselves, without any staffs and their managers.
  • Processes and Results

• Seoul city touring race - First come, first served ('서울구경 선착순 한명', Part 2, Team-challenges)
  • Rule: Top 3-medalist can nominate a partner for this team-adventures. All team should start from Namsan to the en route point, the Dosan Memorial Park in Gangnam-gu. After then, all team should captured a 4 pieces of Korean letter that refer 'Mu' (무), 'han' (한), 'Do' (도), 'jeon' (전) with their camera before finish this race to go to the MBC Headquarters in Yeouido, which are the exact name of this programme in Korean. However, due to the heavy rainfall interrupted their way, all of the mission wasn't accomplished. (But, all of the prize-computer supplies-has been seized by its staff.)
  • Processes and Results

• Do-it-yourself (네 멋대로 해라) special episodes, Part 1 - All members of Muhan Dojeon should serve as an Executive producer (and also as a presenter) for 10 or more minutes of their self-made segments. The propose of this challenge was to give a summer holidays to its hard-working staff, however, the entire staff of this programme decided to give up their vacation to fix this ridiculous 'D.I.Y.' episodes. Aired Park Myeong-su's and Jeong Hyeong-don's segments (other segments will be broadcasted on September 8, 2007).
  • Geo-seong Show with Park Myeong-su - to create an ordinary talk show, however, the contents of this show has been dramatically changed as Jerry Springer Show (as a guest-later served as a host again-Yu Jae-seok strongly argued). Hosted and produced by Park Myeong-su, Jeong Jun-ha served as a Joint panel, and music performed by the band Terrible (Roh Hong-cheol, Jeong Hyeong-don and Ha Ha served).
    • This show was sponsored-which included a wit on the name of companies by its staff-by 'Piggy & Superb-piggy' (뚱보&뚱뚱보), 'Magic Shoes corp.' (주식회사 마법의 구두), 'Chivas Dae-gal' (시바스 대갈), 'Hyeong-don's supper' (형돈이 야식), 'M.A. Ha's English Academy' (하석사 영어교실), 'Father's Wig Corp.' (주식회사 아버지 가발), 'Muhan Rox' (무한락스), 'Yu's video' (유씨네 비디오), and 'Gas Park myeong-su' (까스 박명수).
  • Change - Hosted and produced by an awkward comedian, Jeong Hyeong-don. The aim of this corner (segment) was to disguise their characters, so that all members to recognize how their image to the public was, and to care other members to build a strong unity of this programme. Especially, Yu Jae-seok's one (Yu Geo-seong, a character that imitated from Park Myeong-su's) was a huge sensation.
    • Yu Jae-seok played as Yu Geo-seong, Park Myeong-su became Park Jun-ha, Jeong Jun-ha served as Jeong Ha, Roh Hong-cheol as Roh Hyeong-don, Ha Ha as Ha Hong-cheol, and the host-for-a-moment Jeong Hyeong-don disguised as Jeong Ban-jang.

• Do-it-yourself (네 멋대로 해라) special episodes, Part 2.
  • Han-ip-mann (한입만) - Presented and produced by Jeong Jun-ha. The purpose of this segment was to go to several restaurants in Yeouido and each of the members get treated to a spoon of meals from its beloved viewers. During their surprised visit (to challenge their mission), every people who meet the Muhan Dojeon members was cheered warmly. However, only Jeong Hyeong-don's last mission wasn't accomplished.
  • Boys without fear (겁없는 녀석들) - Presented and produced by Yu Jae-seok. The aim of this segment was to overcome from one of their trademark, scariness. With professional hypnosis treatment to its members (except Jeong Hyeong-don and Ha Ha), they challenged a firewalking to heal their fears, however, only the host-in-chief of this programme Yu Jae-seok succeed (after his mission was accomplished, the others ran and fade away). During a treatment, Roh Hong-cheol's unusual moment of crying like a baby was a huge sensation to its viewers.

• Do-it-yourself (네 멋대로 해라) - Part 3
  • M.A. Ha Ha's "Ask Me Anything" (석사 하하의 무엇이든 물어보세요) - Presented and produced by Ha Ha. his corner was originally supposed to air last week (September 8), but due to the lack of time, it was pushed to September 15. Ha Ha takes phone calls from elementary, middle, and high school students.
    • Jeong Hyeong-don served as an operator, the main character of this segment Ha Ha is a trouble-solving broker, and Jeong Jun-ha, Roh Hong-cheol and Park Myeong-su acted as an opinion panels. Yu Jae-seok served as a host of this segment, again.
    • These are the question that asked to M.A. Ha.
      • An elementary-school student asked how to take back his 3000won to his friends (who lended from him).
      • A middle-school student asked to Myeong-su how to use a black stain (흑채) to her grandmother.
      • A high-school student questioned (later teased) to M.A. Ha that what a word Sparta meant and its origin.
• 'Sseokso & The City' (썩소 앤 더 시티) - The theme of this episode was to claim a question for Muhan Dojeon, what is a meaning of Fashion.
  • Please, come Early (일찍 와주길 바래) - The time-target to come to its outside studio was 10:00 AM.
    • The earliest member of that day, host-in-chief Yu Jae-seok was arrived at 09:57 AM. Roh Hong-cheol and Jeong Jun-ha arrived just a minute later (09:58 AM). Jeong Hyeong-don was late about 10 minutes (arrived at 10:10 AM), and just after that, Park Myeong-su and Ha Ha arrived at the set with holding hands each other.
  • Mission of the day (with Fashion designer Park Mann-hyeon): within a limited budget of 300,000won, each members should set their 'Party Look' on a fashion mall in Dongdaemoon. The title of 'Best Dresser' went to Jeong Jun-ha, and the 'Fashion Terrorist' (the worst dresser) was Jeong Hyeong-don, with a narrow margin against Yu Jae-seok.
  • Gorgeous Dinner party with Doenjang-guys (된장남들의 저녁식사) - During their meeting, they even criticized each members.

• Hangawi Special Invitation - Kim Yu-Na (김연아, a world-class figure skater) in Muhan Dojeon
  • Preparation segments - As always, all Muhan Dojeon Members have a special training before meeting a sportsperson. It was filmed in the midnight (from 01:30 AM to 05:30 AM), so that all members were exhausted, eventually.
    • Short Track Individual race (3 laps) - Ha Ha got a victory, Roh Hong-cheol came as 2nd, and Yu Jae-seok placed as 3rd.
    • Short Track Relay (6 laps) - Team Dol+I (돌+아이, Roh Hong-cheol, Jeong Jun-ha and Jeong Hyeong-don) has won, therefore, the team Little Bitty (땅꼬마, Ha Ha, Yu Jae-seok and Park Myeong-su) should set their hair permed (that will be broadcasted later).
    • Round & Round Challenge (대결 빙글빙글) - 1:1 match, to focus more on its processes with lots of slapstick comedy scenes than its results. A challenger should round a circle for 10 (later 15) laps on a tumbler. After that, challenger should across over the beam and catch a banana, which is 'a bread of life' for all Muhan Dojeon members. During a segment, Park Myeong-su performed a traditional Korean play Geo-shaung Jeon (마당놀이 거셩전).
  • Yu-na, Catch me (if you can)! - All Members should avoid from Kim Yu-Na (she should catch 6 members) within 5 minutes. She succeed in 3 minutes easily, however, the Muhan Dojeon members were totally exhausted.
  • Boys and 'Ah-jeo-ssi's, Catch me! - the role has been changed oppositely from 'Yeon-ah, Catch me!'. She has been managed to avoid the touch of Muhan Dojeon members. The members were at a loss against her truly-fast speed of running and quickly changing her directions.
  • Television Advertisements - feel thirsty? try Yu-na's Bing-su (연아빙수)!
  • Technical Training - She taught to all Muhan Dojeon members, including Spins, Spirals, and three turns. the eldest Park Myeong-su (which frequently called in this programme as a proper Myeong-su 고유명수) trained hard by Yu-na, although his health condition at that moment was extremely tired.
  • Special Figure Skating Performances
    • Kim Yu-Na performed Once upon a Dream.
    • Swan Lake (later the concept has been changed as a Baek-suk (chicken boiled in a plain water) in a Lake 백숙의 호수), performed by Roh Hong-cheol, Jeong Hyeong-don and Ha Ha.
    • Y.M.C.A performed by Yu Jae-seok, Park Myeong-su and Jeong Jun-ha.

• Please, watch your mouth - Muhan Dojeon Goes To Japan (입조심하길바래 특집-무한도전 일본 팬미팅)

The aim of this episode was to claim the truth of Jeong Jun-ha (he proclaimed that thousands of Japanese fans were met when he was in signing on the Han-ryu Expositions in Tokyo on August 15, 2007)'s and Ha Ha (He proclaimed on September 15, 2007, during an opening of 'Sseokso and the city' episode that, in Japan, his popularity is almost same as Shinhwa, a K-pop Idol group)'s arguments.

• • Check-points: Will the number of Jeong Jun-ha's fans reach more than 1,000? - The answer was wrong, however, roughly 200 members around his fan-club in Japan was correct (said by its club's president), during a confirmation in quick fan-meeting at the street of Ginza.
  • All members of Muhan Dojeon travelled around the suburbs of Tokyo to find their beloved Japanese fans. They visited around the streets of Akihabara (at 11:00 for finding), Ginza (at 14:00, finding and quick fan-meeting) and Ueno Park (at 17:20, signing their autographies). However, although they had been performed many of their trademarks (including Hwang Jin-i dance (황진이춤) by Park Myeong-su, Geo-seong Aerobics (거성체조) by Park Myeong-su and Ha Ha, Dooly Dance (둘리춤) by Yu Jae-seok, Lewd Dance (저질댄스) by Roh Hong-cheol, Shaky Dance (진상댄스) by Jeong Hyeong-don and more), most of Japanese people didn't even know them and their appearances (a few beloved fans of them were eventually met all members of Muhan Dojeon).

• Muhan Dojeon's Autumn (seasonal) Field Day (무한도전 가을운동회) - filmed on an elementary school in Paju.
  • A bargain is a bargain - Due to the recent fallout on a challenge (Short Track Relay), All members of the team 'Little Bitty' (Park Myeong-su, Yu Jae-seok, Ha Ha) eventually had their hair permed. During this scene, a beauty expert of Park Myeong-su had suffered a huge difficulty, because of a few strand of his hair.
  • Game 'Blue flag & White flag' (청기백기)
    • Team races - White Team (Roh Hong-cheol, Jeong Jun-ha, Jeong Hyeong-don) got a victory (2:0).
    • Individual races - All members of Whites got their victory (3:0). Therefore, all Blue members (Park Myeong-su, Yu Jae-seok, Ha Ha) had a penalty to hit their head to Korean traditional drum. During this scene, Jeong Hyeong-don had upset when trying to host this game, due to the rainfall started just after his hosting, incidentally. The others proclaimed that, even the sky (weather) helps Hyeong-don's character, 'awkward comedian'.
  • Gourd-popping - Whites succeed to pop their gourd, so they had their lunch earlier than Blues.
  • Korean Marionette performance - All members were performed a traditional Korean play, however, the entire staff (except camera supervisors) had busy on eating their lunch.
  • Tug-of-war Match (줄다리기, 6:6, later 6 vs 4) - They challenged against their giant-weighted staffs, but they went a huge loss (0:3). It reflects the contents of its rashless 1st-ever episode (on April 23, 2005, Muhan Dojeon vs. a bull)
  • Find my half (내 반쪽을 찾아라) - All challengers should ran 20 meters, and tear a balloon to find each individual mission. The one who succeed to complete his mission can ran a track quickly (a challenger came at first with complete his mission is a winner).
    • Group 1

• • • Group 2

• • • Final Round

• Madness Couples (환장의 짝꿍) - The aim of this segment is to find a relationship between each members of Muhan Dojeon and its staff. Starring:
  • Moderated by the Host-in-chief Yu Jae-seok & Shin Mi-so (신미소), Yu's fashion coordinator
  • Geo-seong (Giant Star) Park Myeong-su & Jeong Seok-kwon (정석권), Park's entertainment manager and also as a buddy of him (roughly 20 years).
  • Ha Ha & Kim Ju-yeon (김주연), hard-working entertainment manager of him (during the previous episode, he showed his superb power on 'Tug-of-war' survival to crash the team Muhan Dojeon)
  • Jeong Jun-ha & Choi Jong-hun (최종훈), almighty coordinator (manager) of both Jun-ha and Muhan Dojeon
  • Jeong Hyeong-don & Moon Jong-seung (문종승), former manager of him for 2 years
  • Roh Hong-cheol & Roh Seong-cheol (노성철), his elder-brother (currently obtaining a doctor's course at Yonsei Univ. on Engineering)
• Job-interview of Muhan Dojeon (무한도전 신입사원 면접특집) Part 1

They challenged an annual recruit of MBC, for a seat of experienced entertainment producer (경력직 예능프로듀서), with having their (quite) well-made D.I.Y. experience which featured on the previous episodes of 69, 70, and 71th. First of all, they checked their resume, however, this process made a huge laugh to its viewers. Aired Yu Jae-seok (showed his self-confidence strongly), Park Myeong-su (seriously threatened to the MBC to pick him - otherwise he might move to the other contenders such as KBS and SBS) and Ha Ha's (featured his composition skills which looks like an elementary school student) one.

• A lesson of being as Father (아빠수업 특집)

Inspired by a movie Three Men and a Baby which saw and suggested ideas by the Host-in-chief Yu Jae-seok. Planned under the suggestion by its viewer(Lee Sae-bom, Nickname on the iMBC: 'uuusi'). Here is their summary of work on that day which has been filmed on October 6, 2007.

• • 16:00 ~ 17:00 - All members' arrival with some of embarrassing moments. Yu Jae-seok rumoured by Ha Ha and Jeong Hyeong-don that a baby slept on a living room was his unconfirmed son. Roh Hong-cheol arrived with a noise(that scene was to claim his Dol+I identity, accidentally).
  • 17:00 ~ 17:30 - Introduction of a baby(Im Yeh-jun 임예준, born September 23, 2006). During an introduction, Jeong Jun-ha rumoured(judged) about his size of an extraordinary head (called 'Helmet', more than 10 times bigger than a baby's one) and its weight (his Helmet weighted 8~9 Kilos; a whole weight of baby was just 9 Kilos). All members were tasted a Powdered milk which should be given to a baby.
  • 17:30 ~ 18:00 - A chaotic moment just after a baby woke up his afternoon snap and cried when he saw the members and thought that a group of strangers bothering him. Yu Jae-seok suffered an aftermath of his quite-a-big mistake that he poured a hot-boiled water to reconstitute powdered milk; the correct order was to pour a warm water.
  • 18:00 ~ roughly 18:40 - Park Myeong-su has been succeed to soften his character('a son of devil') with caring warmly like a dad('father' 아버지, another famous character of him on this programme) of a baby. However, he eventually let a fart due to his tiredness which caused by a baby, and then all members and staff ran away to breath a fresh air (a baby was cried again, naturally).
  • At night - Both the members and staff of Muhan Dojeon declared to stop the film and to send a message to its viewers that this challenge was failed eventually, due to his continuous crying when the members caring (just even look at) him.
• Job-interview of Muhan Dojeon (무한도전 신입사원 면접특집) Part 2

(upload quickly)

• Jun-Hines Ward Special (준-하인스 워드 특집)

The aim of this episode was to invite a top American Football player to film a sporting segments, however, due to his recent injury, a whole schedule of his visit in South Korea has been postponed. So that, Jeong Jun-ha, a member of Muhan Dojeon whose body-outlook is fairly similar to Heins Ward, eventually disguised as Ward and challenged some of the segments with other Muhan Dojeon members which has been proposed.

• Muhan Dojeon's Captain Planet

The aim of this episode is to call all members of Muhan Dojeon to alert the severe dangers on the Earth such as Global warming, Environmental disruptions ,Natural disasters, and Extra-terrestrials.

• 'Renewable Energy' special
  • Intro-joke - Muhan Dojeon's routine on their holiday(Clay-animated cartoon flim)
  • Operating a Hair dryer with make their own electricity of running their bicycles - 40 people from its high-profiled staff had eventually succeed to dress their members' hair.
  • The 2nd shop of Coffee Prince - The name of this segment was a parody of 'Coffee Prince', a top-rated television drama of itself, the MBC. 2 people(members) should serve at their self-made (prepared for entire a month) vending machine located at the lobby of MBC. Generally, the automatically-operated electronic vending machine takes only 13 seconds to prepare a cup of coffee, however, they delivered about a minute to their customers.
  • Car Racing with Manpower - Team 'Piggy'(Jeong Jun-ha & Jeong Hyeong-don) is a winner of this ridiculous 30-minute struggling race. More details will upload soon.

Sport Dance special (스포츠 댄스 특집) - Part 1

Sport Dance special (스포츠 댄스 특집) - Part 2 (Paris Hilton was appeared just after checking Muhan Dojeon's performance before the dance competition)

Sport Dance special (스포츠 댄스 특집) - Part 3

'Making Calendar'(for the year 2008) Special (upload quickly)

Muhan Dojeon's 'Thank You Concert' - Preparation

Muhan Dojeon's 'Thank You Concert' Special, at the COEX concert hall on Christmas night, 2007

New Year Special(신년특집 1탄, Part 1) - at the Donghae-1 Natural gas field

New Year Special(신년특집 2탄, Part 2) - at the Donghae-1 Natural gas field

• Muhan News - 'Remembers 2007' Special coverages
• Exploring the entire Donghae-1 field, the nation's very first source of Natural gas (In fact, South Korea has been marked the 95th nation that have a natural fossil fuel resources around the globe; Park Myeong-su is the 96th - for joke.)
• Muhan Dojeon Votes 2008 - Host-in-chief Election - Click for more info.
• Beat-the-sleepness challenge - to avoid boarding a 'scary' ship to return home, All members went automatically challenged to become 'the top 3'. Geo-seong, Roh Hong-cheol and Jeong Jun-ha eventually got their victory.
• Reach up for the Sunrise performances
• Muhan Dojeon Votes 2008 - The Results has been announced. Click for more.

Muhan Dojeon in I-san Extras Special (이산 보조출연자 특집)

• Members in Korean Drama I-san (about Korean kingdom King Jeongjo's life) Extras.
• Yu Jae-seok's Part - Palace Guard, Citizen, Palanquin's driver, Bar customer
• Park Myeong-su's Part - Porter, Citizen, Palaquin's driver
• Jeong Jun-ha's Part - Palace Guard, Citizen, Palanquin's driver, Bar Customer
• Jeong Hyeong-don's Part - Gate Head Keeper, Chinese merchant
• Ha Ha's Part - King's grandson's Guard
• Roh Hong-cheol's Part - Gate Keeper, Citizen

Bejing Olympics Gymnastics Special (베이징 올림픽 기계체조 특집)

• Members with Korean Gymnastics Team to learning Gymnastics
• The 1st Muhan Dojeon Gymnastics Competition
• Yu Jae-seok as Presenter
• Park Myeong-su as Commentator
• Jeong Jun-ha as German Gymnastics Player
• Jeong Hyeong-don as Chinese Gymnastics Player
• Ha Ha as Korean Gymnastics Player
• Roh Hong-cheol as Russian Gymnastics Player