The present text offers a structured selection of historical positions on theory formation for the media of radio and the internet. It establishes a relationship with media usage and its integration into political and economic frameworks. A particular focus is placed on the use of the internet as a complementary medium for radio broadcasting. In an excursion, radio practitioners speak against the backdrop of Bertolt Brecht's "radio theory": they appreciate the opportunity to incorporate the internet into a two-way communication system that would allow radio listeners to influence the design of radio programming through interactive dialogue.