Arirang is a Korean broadcast station that provides programs in English. This Arirang Tower has recording studio where some programs such as Simply K-pop and Bring It On are recorded. You can also apply for studio tour for free. Reservation should be made 2 weeks prior the tour. More info about the tour can be found here.
Address
1467-83 Seocho 3(sam)-dong, Seocho-gu, Seoul, South Korea