One of the latest inventions of science and technology is Television or TV. Invented by the British scientist J. L. Baird in 1926, TV has now given the world a new dimension in every sphere of life. It traveled to our countr, a few years back and is becoming more popular day by day
The main feature of TV is its audio-visual effect. TV technology is highly sophisticated and complicated. It is based on photography and its instant transmission through waves of reproduction on the screen after a very complicated electronic process. It puts before our eyes the pictures of objects and men thousands of miles away together with their sound, and voices, Drama, cinema, sports and many important events are screened on it. We can watch discussions held by intellectuals right before our eyes. With the help of satellites, far-off programmes are monitored and telecast on our sets. In fact, TV has now brough, the whole world inside our drawing rooms.
Apart from being a source of recreation, TV is also an excellent medium of mass education. In the western countries it is used for - running factories and offices. Children attend classes with lectures transmitted on the screen. Control of traffic, detection of shop lifting and theft, checking of entry in any premises are done with the help of a TV which helps to keep an eye on everything from a distance. It is also an important medium of advertisement.
But TV has darker sides too. It has made people unsocial. Guests feel embarrassed and unwelcome when they pay visit to someone while a programme is on. Children are tempted to spend some valuable study hours watching TV programmes.
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