g between New York and Philadelphia" ("AT&T")
The first prediction's citation of the horizon limitation brings in the idea of line-of-sight transmission, which refers to the straight path between a transmission antenna for radio or television signals and a receiver or receivers that may be unobstructed by a physical barrier interrupting the path. The prediction that these transmitters would be decisive in developing a significant broadcast industry undoubtedly came true, for by the 1950s there were several major television broadcasters with national scope. As it happened, the broadcast-transmission technology became much more refined than the 1937 article anticipated, and the relatively simple description of cable transmission technology would eventually foster cable television and run in a line independent of broadcast technology.
Even so, the transition from national radio to national television broadcasting was not entirely straightforward. Rather, "Program genres and production techniques familiar to modern viewers were established through trial and error during television's first decade" (Wei
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