무한도전
"Infinite Challenge" has kept the same scheduled time, since first airing in 2005. Since 2009, it lasts for roughly 75 minutes, excluding ten minutes of advertising. Episodes are also frequently rerun on several Korean cable broadcasting channels. Since February 19, 2011 (episode 237), the program has been aired in high-definition. "Infinite Challenge" has been called "the nation's variety show" and "Korea's real first variety" for having been successful for over ten years.