On the most recent episode of the MBC entertainment program 'Infinite Challenge,' which aired on November 19, 2014, guest Cha Seung Won joined the Infinite Challenge member Park Myung Soo, and they showed chemistry that was as high as singer G-Dragon and Infinite Challenge member Jung Hyung Don's. Cha Seung Won and Park Myung Soo, who were old friends, reunited on this weekend's episode of Infinite Challenge and wiped the windows of the skyscraper 63 building together. When they got on the lift, however, Cha Seung Won betrayed Park Myung Soo and left the lift before it started moving. Park Myung Soo had to wipe the windows alone, still making the audiences laugh with his comments like, "My daughter Min Suh, don't waste your money." In related news, on the most recent episode of the popular MBC entertainment program "Infinite Challenge," the members played the game of "extreme part-time jobs," which was designed by Infinite Challenge member Yoo Jae Suk. They took different part-time jobs and managed to earn money doing hard work. The popular MBC entertainment program "Infinite Challenge," which recently aired its 400^th episode, features the Infinite Challenge members Ha Ha, Park Myung Soo, Yoo Jae Suk, Jung Joon Ha, and Jung Hyung Don.