http://www.dailymotion.com/video/x2hax8r ;Broadcast TV is a wireless system for delivering television programming directly to a viewer's house. The range of broadcast TV is very limited ( since the radio waves travel only in straight line and the earths surface is curved, radio signal cannot be sent for more than 50 kilometers) and more over they need big antennas to send out the signals in the form of radio waves. Because of the disadvantages of the broadcast TV such the line of sight and the distortion problems people moved on to Satellite TV.
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