The Great King, Sejong is a 2008 South Korean historical television series depicting the life of the fourth monarch of Joseon, Sejong the Great. Considered the greatest king in Korean history, Sejong created Hangul, the Korean alphabet. The series aired on KBS from January 5 to December 7, 2008, on Saturdays and Sundays at 21:30 for 86 episodes. Episodes 1 to 26 aired on KBS1, and episodes 27 to 86 aired on KBS2.