During the last two years Manhattan Cable TV has taken positive steps to technically develop a data transmission system and to market the service in the New York City business community. The approach has been largely along the lines established at the outset of the project, but there have been several important technical and business departures from original plans. The data interface equipments have been developed and are now in production. New cable system maintenance instruments and procedures have been developed. System tests have shown excellent performance. A number of contracts for service have been negotiated and circuits are now in continuous operation. The outlook for a large user market is good.