The National Broadcasting Company (NBC) is an American television network headquartered in the GE Building in New York City's Rockefeller Center. It is sometimes referred to as the Peacock Network due to its stylized peacock logo, created exclusively for color broadcasts.

Formed in 1926 by the Radio Corporation of America (RCA), NBC was the first major broadcast network in the United States. In 1986, control of NBC passed to General Electric (GE), with GE's $6.4 billion purchase of RCA. After the acquisition, the chief executive of NBC was Bob Wright, until he retired, giving his job to Jeff Zucker. The network is currently part of the media company NBC Universal, a unit of General Electric (80%) and Vivendi (20%).

NBC is available in an estimated 112 million households, or 98.6% of the country. NBC has 10 owned-and-operated stations and nearly 200 affiliates in the United States and its territories.

History

Earliest stations: WEAF & WJZ

During a period of early broadcast business consolidation, the radio-making Radio Corporation of America (RCA) had acquired New York radio station WEAF from American Telephone & Telegraph (AT&T). An RCA shareholder, Westinghouse, had a competing facility in Newark, New Jersey pioneer station WJZ (no relation to the current WJZ-TV), which also served as the flagship for a loosely-structured network. This station was transferred from Westinghouse to RCA in 1923, and moved to New York.

WEAF acted as a laboratory for AT&T's manufacturing and supply outlet Western Electric, whose products included transmitters and antennas. The Bell System, AT&T's telephone utility, was developing technologies to transmit voice- and music-grade audio over short and long distances, using both wireless and wired methods. The 1922 creation of WEAF offered a research-and-development center for those activities. WEAF had a regular schedule of radio programs, including some of the first commercially sponsored programs, and was an immediate success. In an early example of chain or networking broadcasting, the station linked with the Outlet Company's WJAR in Providence, Rhode Island; and with AT&T's station in Washington, D.C., WCAP.

New parent RCA saw an advantage in sharing programming, and after getting a license for station WRC in Washington, D.C., in 1923, attempted to transmit audio between cities via low-quality telegraph lines. AT&T refused outside companies access to its high-quality phone lines. The early effort fared poorly, since the uninsulated telegraph lines were susceptible to atmospheric and other electrical interference.

In 1925, AT&T decided WEAF and its embryonic network were incompatible with AT&T's primary goal of providing a telephone service. AT&T offered to sell the station to RCA in a deal that included the right to lease AT&T's phone lines for network transmission.