Well, it seems they are going to premiere the first episode of the series in a special event in Tokyo, at
Yamano Hall on 28th September.
The event is call "Little Busters! ~Mission Start~", starting from 20:00 and will be present Rita (who gonna sing), Tomoe Tamiyasu, Hikaru Midorikawa and Naomi Wakabayashi.
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And well, also the formalization of the "Little Busters! Perfect Edition TV Anime ka kinen hen" (リトルバスターズ!パーフェクトエディション TVアニメ化記念版). It goes on sale on November 30 at a price of 8,800 yen.
Source:
http://yaraon.blog109.fc2.com/blog-entry-11758.html