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Worlds Within () is a 2008 South Korean television series starring Hyun Bin and Song Hye-kyo. It centers on the personal and professional lives of those in the broadcasting industry, offering a realistic look at Korean drama production through the work and romance of two TV directors. The series aired on KBS2 from October 27 to December 16, 2008 on Mondays and Tuesdays at 21:50 (KST) time slot for 16 episodes.