Celebrity guests are split into two teams to compete in various contests. One guest, known only to himself, is designated the "X-Man", and does his best to cause his team to lose the contests. At the end, all guests try to determine the X-Man's identity.

A reality and competition show where members are joined by celebs to complete a weekly mission to win the race with Seoul as the beautiful backdrop.

How much do you know about your grown up son? In Mom’s Diary, the daily lives of the grown up celebrity sons are closely observed by their mothers. Do you know why your son drinks so much these days? How much do you know about your son’s philosophy in his life style? Heart-warming moments of observational communication between a mother and a son can be seen on Mom’s Diary.

Infinite Challenge has been reported as the first "Real-Variety" show in Korean television history. The program is largely unscripted, and follows a similar format of challenge-based Reality Television programs, familiar to the audiences in the West, but the challenges are often silly, absurd, or impossible to achieve, so the program takes on the aspect of a satirical comedy variety show, rather than a more standard reality or contest program. In order to achieve its comedic purposes its 6 hosts and staff continuously proclaim, the elements of this show are the 3-Ds, Dirty, Dangerous, and Difficult.