Every episode-by-episode air-date run among the series reviewed was checked. The weekly assumption fails on 51 percent of them.
Forty-six of the 90 do not follow a clean weekly schedule. That is 51 percent. Not a handful of oddities. More than half.
Forty-six of the 90 series reviewed here with a full episode date run do not follow a clean weekly schedule. That is 51 percent. Everyone knows how a BL drama comes out: one episode a week, same night, until it ends. That is the shape the fandom plans around, the shape every episode guide assumes, and the shape a countdown widget is built on. Among the series reviewed, it holds for slightly under half.
A number like this is only worth something if the definition behind it is stated. Of the 121 BL and GL titles reviewed here, 30 have no published episode-by-episode dates and one has a single date, which leaves no gap to measure. That leaves 90 series. The number of days between each episode and the next was worked out, and every series fell into exactly one bucket, tested in the order below so that none is counted twice.
| Bucket | Definition | Titles |
|---|---|---|
| Full dump | Every episode shares a single date. Tested first, because a full dump also satisfies the next definition. | 4 |
| Clean weekly | Every gap is exactly seven days. No exceptions, no skipped weeks, no doubles. | 44 |
| Same-day batch | At least one pair of episodes shares a date, and every gap that is not zero is exactly seven days. | 17 |
| Irregular gap | At least one gap that is neither seven days nor zero. Skipped weeks, split seasons, long hiatuses. | 25 |
| Other | Fits none of the above. Nothing landed here. | 0 |
| Total | The complete set. | 90 |
The five counts sum to 90. If a full dump should not count as a schedule at all, drop those four and the figure is 42 of 90. It is still nowhere near the weekly assumption.
This is the most common deviation and the one that quietly corrupts every third-party episode list.
Top Form ran eleven episodes across only nine Thursdays. Episodes 1 and 2 both went up on 20 March 2025, and episodes 7 and 8 both went up on 24 April. No week was skipped and the series ran straight through Songkran. But anyone filling in dates weekly from the premiere will have every episode from the second onward on the wrong day. That matters most for a series still in its run, which is what the running list of ongoing BL series keeps track of.
Connecting to You put twelve episodes on five Fridays: a four-episode premiere on 14 August 2026, then two per week through 11 September. Double Helix opened with two on the same Friday and then ran a Friday and Saturday pair every week after, so its gaps alternate one day, six days, one day, six days, and never once hit seven.
Korean cable has a shape of its own. Four Hands, Two Sonatas aired Saturday and Sunday every week for six weeks. Love Class Season 3 did the same thing on Thursday and Friday for eight weeks. Both are perfectly regular. Neither ever has a seven-day gap.
A naive “is it weekly?” check marks these as broken when they are among the most regular schedules of all.
Two of the most-watched series skipped exactly one week, and for the same kind of reason.
The Heart Killers ran twelve Wednesdays with a fourteen-day gap between episode 6 on 25 December 2024 and episode 7 on 8 January 2025. That is the Christmas and New Year break. KinnPorsche has a single fourteen-day gap after episode 2, between 9 and 23 April 2022. That is Songkran. The Heart Killers episode dates either side of its Christmas break are listed in full in the cast and episode guide for The Heart Killers.
Worth noting alongside them: Pit Babe did not take that break. Episodes 6 and 7 aired on 22 and 29 December 2023, straight through both holidays. The break is a choice, not a rule.
Some series look wildly irregular until the gap is explained.
Fragrance of the First Flower has a 1,166-day gap in the middle of its run: six episodes across five Fridays in November 2021, then nothing until February 2025, when twelve more arrive two per Tuesday. That is two seasons more than three years apart, read as one run.
GELBOYS has a 504-day gap between episode 7 and episode 8. Either side of it, the schedule is perfectly weekly Saturdays.
The Untamed released fifty episodes across only twenty distinct dates, inside six weeks. A six-episode premiere on Thursday 27 June 2019, then two episodes a day on Monday, Tuesday and Wednesday each week, then an eight-episode finale dump on 7 August.
At the other end of the scale, You Are My Present released all twenty of its episodes on a single day, 8 August 2025. They run about a minute each, made vertically for a phone screen. The whole series is roughly the length of one ordinary drama episode.
And Love Class put its six episodes out on six consecutive days in May 2022. Daily, not weekly.
The working assumption is that streaming platforms schedule irregularly and broadcasters do not, and the raw numbers appear to confirm it. Among the 89 reviewed series with a known network, those on streaming services only deviate 33 times out of 42, or 79 percent, while those carried by at least one linear broadcast channel deviate 13 times out of 47, or 28 percent. A two-sided Fisher exact test on that table returns p = 0.000002.
It is also not true as stated.
The two groups are not comparable. All sixteen of the reviewed Chinese, Taiwanese and Hong Kong series are streaming-only, and all sixteen deviate, because those industries do not use a one-episode-per-week broadcast slot at all. Sort the same 90 series by country instead.
| Country | Titles | Deviating | Share |
|---|---|---|---|
| Thailand | 51 | 16 | 31% |
| South Korea | 11 | 10 | 91% |
| Japan | 10 | 3 | 30% |
| China | 9 | 9 | 100% |
| Taiwan | 5 | 5 | 100% |
| Hong Kong | 2 | 2 | 100% |
| Vietnam | 1 | 1 | 100% |
| Philippines | 1 | 0 | 0% |
Now hold country still. Within Thailand alone, where broadcast and streaming-only delivery genuinely coexist, broadcast series deviate 9 times out of 37, or 24 percent, and streaming-only series deviate 7 times out of 13, or 54 percent. The same test on that table returns p = 0.08. The distance between 0.000002 and 0.08 is the whole point: strip out the country mix and the association stops clearing the usual bar.
Thirteen streaming-only Thai series is a small group, and p = 0.08 is not proof of no effect. There may be a real platform effect inside Thailand that a sample this size cannot resolve. What can be said is that the pooled figure is not measuring it.
So the pooled predictor is not the platform. It is the production industry and the format it works in. Thai and Japanese broadcast-slot dramas hold a weekly rhythm because a slot is a slot. Chinese, Taiwanese and Korean web series are built around multi-episode drops from the start, and were never weekly to begin with.
To see the range, these are the series where the schedule does something genuinely unusual.
Three practical consequences.
The weekly assumption survives because it is right for the most visible group: Thai and Japanese broadcast-slot dramas. It is wrong for nearly every reviewed Chinese, Taiwanese and Korean web release, and the habit of expecting one episode a week carries over regardless. A show with a double drop in episode two has every later date off by a week, and a show with a season gap has them off by years, which is why the country split matters more than any single quirk.
The adaptation side of the genre rewards the same attention to detail: the drama-by-drama adaptations guide names the novel, manga or manhwa each series came from.
One limit on the country split: fifty-seven of the [bgl_stat key=”with_dates”] dated series reviewed include at least one 2026 date, so the sample is weighted toward the present, and the country breakdown reflects what has been reviewed as much as what those industries produce. A wider sample might move the Thai and Japanese figures. It is unlikely to move the Chinese, Taiwanese and Hong Kong ones, because those are already at 100 percent and the reason is structural.
Gap measurements and country breakdowns were worked out from episode air dates as of 10 September 2026. Last updated: September 10, 2026.
Of the 90 reviewed series with two or more published episode dates, 44 follow a clean weekly schedule where every gap between consecutive episodes is exactly seven days. That is 49 percent. The remaining 46, 51 percent, deviate in at least one measurable way.
Each series was sorted into exactly one bucket, tested in a fixed order so nothing is counted twice. Full dump means every episode shares a single date; 4 series. Same-day batch means at least one pair of episodes shares a date and every non-zero gap is exactly seven days; 17 series. Irregular gap means at least one gap that is neither seven days nor zero, covering skipped weeks, split seasons and hiatuses; 25 series. Nothing fell outside those definitions.
The most common deviation is the silent double drop, where two episodes go up on the same date without the schedule being announced as changed. Top Form ran eleven episodes across only nine Thursdays because episodes 1 and 2 shared 20 March 2025 and episodes 7 and 8 shared 24 April. Any guide that assumes one episode per week from the premiere date drifts out of alignment from that point onward.
Among the series reviewed, the pooled association looks strong, since streaming-only series deviate 33 times out of 42 against 13 of 47 for series carried by a linear broadcast channel, Fisher exact p = 0.000002, but it does not survive a control for country. Within Thai series alone the same test returns p = 0.08. All sixteen reviewed Chinese, Taiwanese and Hong Kong series are streaming-only and all sixteen deviate, so platform is largely a proxy for production industry.
That is a definitional choice, so both figures are given. Four reviewed series release every episode on a single date. Excluding them, the deviation count is 42 of 90 rather than 46 of 90. Either way the weekly assumption fails on close to half of the series reviewed.
Among the series reviewed, China, Taiwan and Hong Kong all deviate at 100 percent, and South Korea follows at 91 percent. Thailand sits at 31 percent and Japan at 30 percent, where broadcast slots keep the weekly rhythm.
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