The MBC entertainment program 'Infinite Challenge' member Jung Joon Ha asked Yoo Jae Suk how he runs on the SBS entertainment program 'Running Man.'

On the most recent episode of the popular MBC entertainment program 'Infinite Challenge,' which aired on Feb. 7, 2015, the Infinite Challenge members played a psychological game of looking for one another to secure the mystery prize in the box. Park Myung Soo took the second box from Jung Joon Ha, and all of the Running Man members got together at a restaurant where Park Myung Soo wanted to eat alone. When Yoo Jae Suk got there last, Jung Joon Ha asked him, "How do you do 'Running Man' (if you're this late)?" and made people laugh. In related news, on the most recent episode of the popular MBC entertainment program 'Infinite Challenge,' the members chased one another for the mystery prize in the wooden box. 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.