CNBC had its beginnings in 1979 as the Satellite Program Network (SPN), showing a low-budget mix of old movies, instructional and entertainment programs. The channel later changed its name to Tempo Television. After initially signing a letter of intent to acquire Tempo, NBC eventually opted for a deal to lease the channel's transponder in June 1988. On this platform, and under the guidance of Tom Rogers, the channel was relaunched on April 17, 1989 as the Consumer News and Business Channel. NBC and Cablevision initially operated CNBC as a 50-50 joint venture, choosing to headquarter the channel in Fort Lee, New Jersey.