This ranking is based on the nationwide Cable TV ratings from AGB Nielsen Media Research (in South Korean), and thus reflects also the Most Watched & The Most Popular Korean Dramas during their broadcast.
1 . The World Of The Married: 28.37%, JTBC
Broadcast Schedule: Fridays & Saturdays
2. SKY Castle 23.78%, JTBC
Broadcast Schedule: Fridays & Saturdays
3. Crash Landing On You 21.68%, tvN
Broadcast Schedule: Saturdays & Sundays
4. Reply1988 18.80%, tvN
Broadcast Schedule: Fridays & Saturdays
5. Goblin 18.68%, tvN
Broadcast Schedule: Fridays & Saturdays
6. Mr. Sunshine 18.12%, tvN
Broadcast Schedule: Saturdays & Sundays
7. Itaewon Class 16.55%, JTBC
Broadcast Schedule: Fridays & Saturdays
8. 100 Days My Prince 14.41%, tvN
Broadcast Schedule: Mondays & Tuesdays
9. Hospital Playlist 12.70%, tvN
Broadcast Schedule: Thursdays
10. Signal 12.54%, tvN
Broadcast Schedule: Fridays & Saturdays
* This ranking of the highest-rated Korean dramas of all time in South Korean Cable TV is updating every time a new K-drama breaks a record and unseats another k-dramas.
Trans & Cr. Aзиатские фильмы
great! congratz!!!
tbh korean Cable TV has better kdramas than korean Free-TV from 2015 to present.