OreImo is known by the large name of Ore no Imouto ga Konnani Kawaii Wake ga Nai, meaning Your Little Sister isn't that Cute, and it's a TV comedy on the life of a closet female otaku and her annoying big brother who chases her to expose her for what she truly is!
The anime just premiered on Tokyo MX TV last Sunday.
Notice that Anime News Network (ANN) is not the same as the The Anime Network, which is streaming Hyakka Ryoran Samurai Girls.