Found this on the Sailor Moon News Portal's Japanese Google News feed.

http://bb.watch.impress.co.jp/cda/news/19125.html

Prepared a translation for you:

From September 1st, "Toei Animation's BB Premium 'All You Can Watch' Pack" will begin, allowing viewers on Plala Network's set-top-box video service for FLETs customers, "4th Media," to watch Toei's animation programming via a monthly subscription service [rather then pay for episodes individually].*

*The video service they speak of, 4th Media, is a television service that sends the signal via broadband and hooks up to a set top box. FLETS is a broadband provider.

The Toei Animation BB Premium 'All You Can Watch' Pack has some 15 titles and over 1,000 episodes in a monthly package, including "Fist of the North Star," "Ge ge ge no Kitaro," and "Sailor Moon." Each month, 2 titles and roughly 100 episodes will be rotated in.

The package is available for those subscribing to the regular and lite plans. The monthly cost is 1,554 yen [$13.10], with no application fees.