The MBC entertainment program 'Infinite Challenge' member Yoo Jae Suk apologized to the walking tour guide for when Kwanghee mistakenly read a Chinese character wrong.

On the most recent episode of the popular MBC entertainment program 'Infinite Challenge,' which aired on Nov 7, 2015, the MBC entertainment program 'Infinite Challenge' members brainstormed ways to attract more international tourists to visit Seoul. The 'Infinite Challenge' members split into three teams (Haha and Jung Joon Ha; Yoo Jae Suk and Kwanghee, and; Park Myung Soo and Jung Hyung Don) and developed three different Seoul tours.

Kwanghee and Yoo Jae Suk discussed to show international tourists Seoul's recent history of the past 100 years. Yoo Jae Suk and Kwanghee took a walking tour with a tour guide before taking the international visitors there. At Duk Soo palace, Kwanghee mistakenly read a name of class, Jung Goo Poom, to virility, Jung Ryuk, and made the tour guide laugh. Yoo Jae Suk had to apologize for Kwanghee's astoundingly stupid mistake. In related news, the MBC entertainment program 'Infinite Challenge' is one of the popular, long lasting entertainment programs in Korea. It features the Infinite Challenge members Ha Ha, Park Myung Soo, Yoo Jae Suk, Jung Joon Ha, and Jung Hyung Don.