Not everybody realizes that network radio programs go over telephone
channels from point of origin to the local radio stations that actually
broadcast them. The Bell System’s experience in serving radio networks
dates from 1923, when network broadcasting began. Today, in order to
link the nation’s radio stations, Long Lines operates about 200,000
miles of program transmission circuits. And within their own
territories, the operating telephone companies, too, furnish some
program circuits.
Bell System scientists pioneered also in sending television images from
one place to another, by both wire and radio. The years of experience in
serving radio networks have been invaluable in solving the problems of
TV network transmission. As of July, 1955, the System linked about 365
TV stations in about 240 American cities. To keep pace with the latest
developments, the nationwide TV network has been equipped for color
programs, which are available to over 230 stations in about 130 cities.
[Illustration: BELL SYSTEM TELEVISION NETWORK ROUTES JULY 1, 1955]
Color and Monochrome Available To Cities On These Routes
Routes Equipped For Monochrome Only
Planned