In 1972, TBC had a huge impact on the drama industry in the '70s through a work called Yeoro. And in the 70s, the increase in broadcasting companies led to competition among the three broadcasting stations - KBS, TBC, and MBC - to produce dramas. . Entering the 70s, three broadcasters -- KBS, TBC, and MBC -- competed in soap operas. Broadcast on TBC from 1970, "Ah-SSI" depicts a typical Korean female figure who lives at the expense of herself for her family, with the turbulent period of history ranging from the 1910s to the 70s as the backdrop of the times. In addition, "Yeoro," which aired on KBS in 1972, ran a popular road, drawing sympathy from viewers, with its silly but pure protagonist, frugal marital love and the pain of separated families. Other major dramas in the 70s include "The Investigation Team Leader," "Jang Hee-bin" and "Hometown of Legend." And in 1971, the drama 'The Investigation Team Leader' was also very popular at that time. "The Investigation Team Leader," which began airing in March 1971, aired a total of 880 episodes until its end in October 1989. The writers alone went through Kim Jung-hwan, Yoon Dae-sung, Shin Myung-soon, Lee Sang-Hyun and Park Chan-sung, while the directors also started with Heo Gyu, followed by Park Chul, Yoo Heung-Ryul, Lee Yeon-Heon, Ko Seok-man and Choi Jong-soo. "The Investigation Team Leader," which began airing in March 1971, aired a total of 880 episodes until its end in October 1989. The writers alone went through Kim Jung-hwan, Yoon Dae-sung, Shin Myung-soon, Lee Sang-Hyun, and Park Chan-sung, while the directors also started with Heo Gyu, followed by Park Chul, Yoo Heung-Ryul, Lee Yeon-Heon, Ko Seok-man, and Choi Jong-soo. On December 1, 1980, South Korea became the 81st country in the world to open the era of color TV broadcasting. Show programs with colorful stages have sprung up and the genre of dramas has expanded as the amount of outdoor filming has increased. The most popular actresses of the '80s were Won Mi-kyung, Lee Mi-sook, Hwang Shin-hye, Choi Myung-gil and Jang Mi-hee.