In South Korea, television ratings measure the percentage of total television households tuned into a broadcast, not the raw percentage of individual human viewers. That is why 7.5% for tvN's Four Hands, Two Sonatas counts as a cable hit, while KBS2 weekend family drama Love Is Coming reached 14.5%.
| Item | Details |
|---|---|
| What ratings measure | Share of TV households tuned into a broadcast, not individual viewers |
| Terrestrial primetime hit benchmark | Roughly 10% to 15% (SBS, MBC) |
| Cable hit benchmark | 3% to 4% solid, 5% to 7% strong hit, 8%+ standout seasonal hit |
| Four Hands, Two Sonatas (tvN) | 7.5%, number one across cable channels on Sunday, September 20 |
| Flex X Cop Season 2 (SBS) | 11.7%; an SBS rerun on September 19 drew 3.8% |
| Love Is Coming (KBS2) | 14.5%, weekend family drama |
| Joyful Days | 10.3%, weekday daily serial |
| Figures as of | September 27, 2026 (household ratings) |
Households Versus Individual Viewers
If you follow Korean entertainment news every morning, seeing a weekend family drama celebrate 14% while a buzzy cable romance throws a party for reaching 7% can feel confusing at first glance. Once you understand the dividing line between free-to-air public networks and cable channels, those numbers turn into a clear window into how Korean audiences actually watch television.
The most common misconception among international fans is thinking that a 10% rating means ten percent of South Korea's entire population watched the show. In reality, Korean ratings are measured by household, not by person.
A 10% household rating means that out of every one hundred homes with an active television, ten were tuned into that specific broadcast. While ratings reports also note estimated total viewer counts in thousands, the household percentage remains the universal standard across the Korean television market. It is the number the industry quotes when evaluating series performance and scheduling decisions. Understanding this distinction helps explain why a family drama watched together in shared living rooms commands higher percentages, while niche dramas may show lower household shares despite immense social media engagement.
The Big Divide Between Terrestrial and Cable Networks
To make sense of ratings headlines, the first thing to check is the network broadcasting the show. South Korean television is fundamentally split into two distinct categories:
Terrestrial Networks (Free-to-Air)
KBS, SBS, and MBC are major public or commercial networks accessible on every television in South Korea without a paid subscription. Because their broadcast signal reaches virtually every household automatically, their baseline viewership is inherently higher. A primetime terrestrial drama like SBS's Flex X Cop Season 2 aims for double digits (10% to 15%) to be considered a major hit. If a terrestrial primetime series remains stuck in the 3% to 4% range, domestic media generally treats the run as a commercial disappointment.
Cable and Pay-TV Channels
tvN, JTBC, and ENA are commercial cable networks that require a cable or IPTV package. Although most modern Korean homes subscribe to cable or high-speed fiber IPTV, cable channels historically operated with smaller built-in audiences. As a result, cable ratings benchmarks are calibrated differently:
- 3% to 4%: Solid, respectable performance for a weekday cable drama
- 5% to 7%: Strong commercial hit that generates widespread online discussion
- 8%+: Standout seasonal hit that leads cable competitors
This explains why tvN's Four Hands, Two Sonatas hitting 7.5% was celebrated as an impressive achievement. On Sunday, September 20, that 7.5% made it the number-one program across cable channels. A 7% rating on cable often generates as much commercial buzz and industry praise as a 12% rating on a free-to-air public network.
Real World Ratings Benchmarks Across Current Dramas
Here is how modern Korean dramas compare across different networks and broadcast slots:
| Category | Typical Channel | Hit Benchmark | Real-World Example |
|---|---|---|---|
| Weekend Family Drama | KBS2 | Roughly 14% to 20% | Love Is Coming (14.5%) |
| Terrestrial Primetime Mini-Series | SBS, MBC | Roughly 10% to 15% | Flex X Cop Season 2 (11.7%) |
| Weekday Daily Serial | KBS1, KBS2 | Roughly 8% to 12% | Joyful Days (10.3%) |
| Weekend Cable Mini-Series | tvN, JTBC | Roughly 5% to 8%+ | Four Hands, Two Sonatas (7.5%) |
Every broadcast category serves a distinct audience demographic, from multigenerational weekend households to dedicated evening mini-series fans.
What the Bon and Jae Tags Mean in Korean Schedules
When browsing Korean television schedules or domestic broadcast charts, you will often spot characters attached to drama titles like "Bon" (본) or "Jae" (재).
These tags indicate whether a broadcast is a premiere or an encore:
- Bon (본방송): The original, first-run premiere broadcast of the episode. This is the figure reported in major news headlines and used to track official series milestones.
- Jae (재방송): A scheduled television rerun broadcast later in the day or over the weekend.
Encore broadcasts can draw surprisingly strong numbers. For example, during the run of Flex X Cop Season 2, one SBS rerun on September 19 still drew 3.8%. For busy viewers who missed the live premiere, an encore broadcast serves as a convenient catch-up window. Dedicated cable networks like ENA or SBS Plus also license recent terrestrial hits, running encore airings that steadily build viewer recognition throughout the week.
The Impact of Streaming on Modern Ratings
Ten years ago, smash-hit Korean dramas on public television routinely surpassed 20% or even 30% household ratings. Today, reaching 12% on a network like SBS or 8% on tvN is cause for major celebration.
This shift does not mean fewer people are enjoying Korean dramas. Instead, viewing habits have diversified across digital streaming platforms like TVING, Disney+, and Netflix. Younger audiences frequently watch dramas on mobile devices, laptops, or catch-up services after the linear broadcast finishes. Because official domestic television ratings measure linear television broadcasts, digital streaming views are tracked separately on individual platform rankings. When a modern drama manages to break double digits on live broadcast television despite heavy digital competition, it shows that the storytelling connects broadly across multiple generations of viewers who still value the shared experience of watching live television together.
Ratings are household figures as of Sep 27, 2026.
Frequently asked questions
What is considered a great rating for a Korean cable drama today?
For cable channels like tvN or JTBC, ratings between 5% and 7% represent a major commercial hit, while anything exceeding 8% is an outstanding seasonal success.
Why do KBS weekend family dramas often achieve higher ratings than trendy mini-series?
KBS2 weekend family dramas air on Saturdays and Sundays and tend to be watched by the whole family.
Do global Netflix or Disney+ views count toward Korean TV ratings?
No, Korean television ratings measure strictly domestic linear television broadcasts within South Korea. Global digital streams are measured separately by platform charts.