I am more of a Two Days One Night / Knowing Brother / Running Man fan but I do enjoy the occasional Infinite Challenge. IC or Mudo, is a long-running Korean variety show wherein they film comedians as well as distinguished Korean personalities in awesome scenarios.
Jack Black has had his time on this show as did Jackie Chan and pretty much a host of international stars. This time they have Steph Curry as well as Seth Curry on their program. Yoo Jae Suk is a staple on Korean television and he rounded up his friends to give the Curry brothers a challenge.
And yeah, Infinite Challenge is coached by Seo Jang Hoon. He is currently an entertainer in Korea but he was part of the Korean team that made the Philippines cry at the 2002 Busan Asian Games.