Television Network
As one of the three major commercial networks, CBS was organized
in 1928 in which its founder, William Paley, acquired ownership of a
41．the group of radio stations. As the Columbia Broadcasting System
42．expanded its operations, and soon becoming the largest radio network
43．in the United States, it is precociously recognized the potential for the
44．rapidly evolving television broadcasting technology. On July 13th,
45．1931, it began to experimental television broadcasting in New York,
46．and ten years later it began regular black and white week broadcasts
47．over its WCBW TV station in the same city, in which became WCBS TV
48．in November 1946. With Television City in Hollywood, CBS has launched
49．the industry’s first full scale production studio there. Today CBS owns
50．television stations, radio stations, home video production and distribution.
51．The CBS Broadcasting Group is composed of six divisions, television
52．network, entertainment, sports, news, local television station, and the radio. For most of commercial television history, CBS has been the leader in prime time ratings, having the highest rated shows in almost every year from the mid-1950s through the mid-1980s.

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