Types of Propaganda

TV changes some basic concepts

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TV changes some basic concepts

TV is largely responsible for bringing about so many social, cultural and economic changes- and that too with rapid speed, and is considered as one major factor to help globalize human thinking and understanding on various matters by fully exploiting all the elements possible in visual communication, or say broadcasting. More on this aspect will be discussed in a coming lecture.

By 1935, mechanical systems for transmitting black-and-white images were replaced completely by electronic methods that could generate hundreds of horizontal bands at 30 frames per second. Vladimir K. Zworykin, a Russian immigrant who first worked for Westinghouse, patented an electronic camera tube based on the cathode tube. Philo T. Farnsworth and Allen B. Dumont, both Americans, developed a pickup tube that became the home television receiver by 1939.

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