Willoughby Sharp «Two Way Demo - Send and Receive» 1977.
Along with Liza Bear and Keith Sonnier, Willoughby Sharp produced Two WayDemo - Send and Receive. On September 10 and 11, 1977, the first two-way live broadcast between New York and San Francisco took place. Put into position in 1976, the NASA Satellite CTS was used for the occasion. The New York-based TV station, MCTV, received a cable signal by satellite. Throughout the two-and-a-half hour-long broadcast, the two-way telecommunication was the central theme, texts are read, video material recorded and discussed. The broadcast reached almost 25,000 spectators.
from: Ann-Kathrin Schlote, Pioniere der Telekommunikationskunst, unpublished Master of Arts dissertation, University of Heidelberg, 1998.