This is respond from Nielsen Korea regarding confusion of ratings for Goblin:

Hi, this is Nielsen Company Korea.

About your inquiry, we do apply different standard of rating analysis,respectively, between Nielsen's website and portal site (Naver,Daum).

For ratings stated on Nielsen Korea's site stands for how many households saw the drama 'Goblin' among households who saw only via Cable TV.

However, for ratings on Naver and Daum, it is data based on Pay TV households.

If you want to make a comparison between 'Goblin' and 'SKY Castle', you have to compare using rating that has been calculated at the same level.

In other words, 20.509% of 'Goblin' (20/01/17) and 19.243% of 'SKY Castle'(12/01/18) calculated based on Pay TV households, are proper counterparts to be analyzed

Hope my explanation helps your understanding.:)

Regards,
Soyeon

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윤 소 연 Soyeon Yoon

미디어사업본부 | 사원

13~16F Central Place Bldg, 50 Seosomun-ro, Jung-gu, Seoul, Korea (04505)

T. 02.2122.7100 | F. 02.753.3761
soyeon.yoon@nielsen.com

http://www.nielsenkorea.co.kr / http://www.nielsen.com

22% wow. JTBC has won lottery. I hope JTBC management won't loss mind and follow the steps of TVN.

Poong-Sang 10% yes.

Rom-coms need to reinvent themselves lol. They can’t get high ratings anymore. Family dramas and makjang, with fewer episodes and in prime time slots, are what Korean viewers seem to want now.

Congrats to SKY Castle! And I’m happy The Crowned Clown is getting attention.

Bad Detective is losing a lot of viewers this week and i can't say in all honesty that it's not deserved.

Lee Seol and Shin Ha Kyun are still leading this boat like the queen and the king that they are, but not even the fact that they are oozing charisma, talent and have an incredible chemistry can fix the damages caused by the unbalanced writing.

I have never seen a drama crumbling so fast after promising so much.
We had few weeks at the start where the stakes keep getting higher and higher while offering meaty character developments, and then after the major revelations of ep11-12 (or ep6) which turned upside down the drama's universe, it seemed like the writer lost his touch.

The implausibility is not anymore since then a guilty pleasure in which the writer indulge once a while for the fun but the core of the drama itself.
Ep 21 and ep22 are from this point of view a total mess: a bad copy and paste of an episode of Black Mirror, with all its excess.
The scenes where people were voting online to decide if the criminals should be killed or spared, or when they were gathering and filming at a crime scene to just watch a man getting killed were bad writing beyond all redemption.

I don't know how they managed to screw the adaptation of a show which seemed to have such a clear identity but it has s clearly past the point where it can be awarded as the biggest disappointment of the year.

The Crowned Clown deserved it. The actors and the story are so great so no wonder everyone watch it

Two week hiatus for Clean With Passion For Now was simply too long. Viewers simply drifted away. This is too bad because it is a really good show.

Sky Castle really is an interesting show (I am only on Ep. 11, and counting). I am happy that the Crowned Clown has made a strong opening. If the writing stays strong, this one is a real winner. Lots of acting power all around.

Sh*t just go real on My Healing Love this weekend, both on the start of confuuuused romantic feelings (one one side, at least) and the takedown of the evil stepmother!! I hope ratings go up next week. This is such a good show with a great cast.