Hearts of Nineteen (Korean: 열아홉 순정; RR: Yeorahob Sunjeong; lit. Pure Nineteen) is a 167-episode South Korean television drama/romantic comedy broadcast by KBS1 from mid 2006 to early 2007. The drama won many awards at 2006 KBS Drama Awards and was a commercial success reaching a peak rating of 43.2% on its January 6 episode and an average viewership of 29.14%.