Updated: 11/19/2015

Film, Radio and TV - 24




Early History




World War II Puts

 TV "On Hold"

When World War II came along (1939-1945) the development of TV stopped. During this time U.S. industry moved into large-scale production of war materials.

Once the war ended, some 70 TV stations immediately went on the air. Things expanded rapidly until 1948. At that point the FCC saw that the number of available TV channels (2-13 on the VHF band) wasn't going to meet the demand for new stations.

To have time to sort out the problem they initiated a four-year freeze on issuing new TV station licenses.

UHF Television Launched

>>The solution the FCC came up with was to authorize the use of a whole new group of channels. In 1952, they launched UHF television (ultra high frequency, channels 14–83) and lifted the freeze.

Their plan provided for 2,053 stations in 1,291 communities in the U.S. and its territories. Channel assignments in 242 communities were set aside for noncommercial and educational purposes.

Because the UHF band represented much higher frequencies than the original VHF channels, it presented some unique problems — not the least of which was the fact that existing TV sets could not receive the new channels.

The FCC then mandated that all new TV sets manufactured must have the ability to receive both VHF and UHF channels. Owners of existing receivers had to buy a special tuner if they wanted to see UHF stations.

Viewers quickly discovered that UHF stations were much harder to tune in than VHF stations, and for most people the new UHF channels required a special antenna.

>>To make things even more complicated some TV markets had all VHF stations; some all UHF; and some had both types. In markets that had both VHF and UHF channels, people tended to just stick with VHF because it was a lot easier.

But, there were even more problems for UHF stations; they required far more transmitter power to cover a given area, and, compared to VHF, their signals tend to encounter more reception problems.

All of this, of course, meant that UHF stations had a major disadvantage. Because the number of viewers was limited, the the new UHF stations couldn't generate enough revenue. Many "went dark" (ceased operations).  A commercial UHF station in San Francisco was sold to a public station for one dollar.

>>Many of the UHF problems were solved with new types of TV sets and the wide use of cable. (Cable television makes all TV stations equal, regardless of frequency or power.)

Incidentally, when digital/high-definition (HDTV) television was in the planning stage in the 1990s, the FCC decided to take over a large (and mostly unused) chunk of the UHF spectrum for this new technology. You can find out more about this new type of television here.


Television in European

Countries and Canada

>>After World War II, the BBC (British Broadcasting System) launched an ambitious plan to provide television service to 80 percent of Great Britain. In 1949 they completed construction on the most powerful TV transmitter in the world. Eight other BBC stations were completed in 1952. A little more than 25 years later, 98 percent of the population had a TV set in their homes.

In Canada, where experiments in television had started in the 1930s, regular TV broadcasting was launched by CBC (Canadian Broadcasting Corporation) and station CBFT in Montreal in September, 1952. Only three years later, television was available to 66 percent of the Canadian population. Three years after that Canada telecast its first "live," coast-to-coast program on a newly completed television network.

As we noted when we discussed the development of radio, one of the major problems Canada has is producing a full range of programs in both English and French. This meant that after CBC and many independent stations were considered, Canada produced more hours of radio and television programming than any other country.

>>Although France and the Netherlands also initiated TV broadcasting soon after the war, it was Russia (specifically, the city of Moscow), in 1948 that first initiated regular continental broadcasts.

By the late 1980s, more than 90 percent of households in Italy and West Germany had television receivers; and 98 percent of British, French and Russian households had TV sets.

Except for Canada, all of these countries use a different broadcast system than the United States. Starting later than the United States and being able to take advantage of later technical developments, these European countries were able to devise systems that, in terms of clarity, were superior to the U.S. system — and totally incompatible with it.

This also meant that TV receivers (and later, videotape machines) sold in one country often could not be used in another country.

Incompatible television standards also created major problems for selling U.S. TV programs to European countries. (The export of film and TV entertainment programming is one of the largest exports for the United States.) More information on world TV systems can be  found here.


East and West Coasts of the U.S. Linked

>>By 1952, AT&T began to electronically link the east and west coasts of the United States. Having coast-to-coast connections had a major impact on the TV industry — even more than the radio networks had on radio.

Before this time the only way that a TV program could be distributed to stations across the country was to use a movie camera to photograph the program from a TV screen (a kinescope recording) and then send copies of the film to individual stations. In addition to representing a major delay, the somewhat blurry, black and white kinescope recordings were less than appealing.

Nightly network TV newscasts that originated on the East Coast of the United States were sent to West Coast stations by kinescope recordings. After the newscast was filmed, the film was put on a plane, processed as the plane flew across the country, and then delivered several hours later to West Coast stations.

>>When AT&T finished linking the east and west coasts, all this changed. From then on, programming that was produced on either the east or west coasts (where most TV programming originates) could be sent "live" over network lines to stations throughout the country. In 1956, a video recording system was invented, which made all this even easier.


TV Becomes a Home's Focal Point

>>By 1955, the cost of TV sets had come down considerably. Instead of being equal to half the price of a car, they were now just equal to the cost of a new set of tires.

In that year, 67 percent of homes had a black and white TV receiver (color had not hit the scene yet).

Just five years after that the figure had reached 87 percent. Television had now taken the place of radio as the family's evening focal point.

>>In a short time the viewing public wanted more TV channels.

To meet this need, the first step was to build new TV stations. When the satellite relay of TV signals became possible, a profusion of satellite services, including HBO, Showtime, and many specialty channels, became available. The satellite distribution of TV signals is discussed in more detail  here.

The graph on the right shows how the number of TV channels rapidly increased after 1980.  

>>In the next module we'll follow the history of television into the present era.

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