Pilot Two-Way CATV Systems

Pilot two-way CATV systems have been mounted in the United States largely to assess the marketability of various interactive services (e.g., subscriber response) and to assess technical problems over operating CATV systems. Such tests were at their peak in the early 1970´s. Twelve systems which have been publicly tested are considered briefly. Three of these, the Theta-Com subscriber response system (SRS), the Coaxial Scientific Telecinema system, and the MITRE MITRIX system, are considered in some detail.