User blog comment:B214/Question and Answers 6/@comment-3285616-20161121005601/@comment-27876048-20161122201940

I think familiar of zero got maybe three seasons and a movie but I don't know if its harem. Tenchi Muyo is the only other one I know of that got three seasons for the original anime storyline, the other seasons were spinofffs that either featured completely different characters or took place in an alternate storyline with same characters different backgrounds ( Example: Dragon Ball Super vs Dragon Ball GT). To Love Ru doesn't real count because seasons 1 and 2 are adaptations of the original To Love Ru manga and the "3rd and 4th seasons" are adaptations of the manga's spinoff/sequel series To Love Ru Darkness.