On December 18, 2007 the anime's official website, haruhi.tv, was replaced by a fake 404 error with five form-input fields, a reference to the pivotal date in The Disappearance of Haruhi Suzumiya, the fourth volume in the light novel series.
Animeens officielle hjemmeside, haruhi.tv, blev den 18. december 2007 erstattet af en falsk "Fejl 404" meddelelse, med fem inputfelter; en reference til den skæbnesvanger dag i The Disappearance of Haruhi Suzumiya, det fjerde bind i light novel serien.