Notes
1 Kyuchan Kim, the corresponding author of this article, was one of principal investigators of the research, for which this survey was conducted.
2 Kingdom is a drama series. It ran for two seasons with six episodes each and also led to a single episode sequel which was entitled Kingdom: Ashin of the North.
3 In this regard, an interesting case can be found with the “Netflix quota” and “Netflix tax”. Refer to Parc and LaFever (Citation2021).