TELEVISION
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TELEVISION
The most important and characteristic means of communication in the XX century is television. How a television programme is made. How a television set works. Summary.
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INTRODUCTION
The 20th century has paved the way to the Era of Communications.
We have achieved a great degree of technical perfection: radio, telephones.
Explosion of written communications.
Communication with far-away places is possible.
Television is a huge business.
We can see news bulletins, games-shows, sporting events, movies. Television allows us access to different cultures.
We witnessed the first time man set foot upon the Moon.
We can see great cities, monuments, wars, catastrophes, public figures and film-stars.
The ultimate computerised advances in the field of video give us images with new dimensions.
HOW TELEVISION IS MADE
Studios, “lots”, “sets”, lighting, control and quality of sound and images.
Producers, cameras.
Previously taped and “lived” broadcasting.
Television affords a great variety of programmes aimed at different audiences.
Publicity.
HOW TELEVISION WORKS
How light itself behaves.
Green, red and blue colours.
The first thing we need to make Television is a camera.
What does it happen when light passes through the view finder?
Television waves. Signal repeating-stations. Antennas.
Television by cable. Television satellites. Optical fibres.
Parabolic antennas.
The Television screen.
Present-day technology has created High Definition Television.
SUMMARY |
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