Full Service Network - A Time Warner-coined term for the company's Orlando, Florida, experiment in interactive cable services.  Full Service Network (FSN) was a revolutionary 1994 Time Warner experiment in interactive cable services. It offered a number of features including video-on-demand, shopping, games, an electronic program guide and US Postal Service functions.  Users each needed a set-top box.

FSN - (Full Service Networks) - A likely antiquated term for a form of interactive TV that companies and consumers would consider to have a 'full range of services', including home shopping, banking, videoconferencing and more.