Genre: Fantasy, Mystery, Thriller
Cast: Choi Jin Hyuk, Lee Yoo Young, Yoon Hyun Min
Original Network: OCN
Original Release: March 25, 2017
Tunnel Episode Ratings
Tunnel has an average episode ratings: 4.42% in TNmS – Nationwide, 4.67% in AGB-NMR – Nationwide. Here are “Tunnel” episode viewership ratings according to AGB Nielsen Media Research (NMR) and TNmS.
A rating is usually set for each individual episode of a television series. Programs are rated by the organization that manages the system, the broadcaster, or the content producers. The rating can change per episode, network, rerun, and country. As such, program ratings are usually not meaningful unless when and where the rating is used is mentioned.
Viewership ratings are provided by two companies in South Korea, AGB Nielsen Media Research and TNmS. Originally Media Service Korea was the only company providing such information, and it was later acquired by Nielsen Media Research. In 1999 TNS Media Korea also began such service, and later changed its name to TNmS. AGB collects viewership data based on 2050 households, while TNmS has 2000 households with measuring devices. Drama ratings usually vary between the two companies by 2-3%.