Each episode featured three members of Morning Musume. During the first season, they would each episode introduce and briefly discuss a piece of urban culture. During the following two, they would demonstrate a simple science experiment, accompanied by a little skit in a surreal setting.

Morning Musume Tsuushin 13 - Abe Natsumi, Iida Kaori, and Yaguchi Mari - Lucky jinxes (2002-06-25)

Source: http://wiki.theppn.org/Morning_Musume_Tsuushin