On Air is a 2008 South Korean television series, starring Kim Ha-neul, Park Yong-ha, Lee Beom-soo and Song Yun-ah. It aired on SBS from March 5 to May 15, 2008 on Wednesdays and Thursdays at 21:55 for 21 episodes. The series is a behind-the-scenes look at a fictional television drama, revealing fascinating details about what normally goes on behind a TV drama production.