>>2033382The Melancholy of Haruhi Suzumiya.
The source material is a bunch of light novels. There's an anime and manga based off of them. The manga deviates in places, but the anime is fairly faithful.
The anime is retarded with the order of the episodes.
Season 1 is not in chronological order (it's fine, it works). Season 2 is a re-broadcast (in chronological order this time) of season 1 with new episodes mixed it.
My advice? Watch season 1 in broadcast order and then watch the new episodes introduced in season 2.
There's also a really amazing movie (The Disappearance of Haruhi Suzumiya) that happens after all the anime episodes.