A remote control only works when it is pointed at the television. What is the best explanation for this ?

A remote control only works when it is pointed at the television. What is the best explanation for this ?
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We all almost use An IR remote controller to use operate a TV OR DTH OR any other electronics Gadgets in out home but ever you think how this process works means when you press any key in front of your TV then it react as per command given by you ….. Lets know how it happen ..in very simple words , no more technical depth.. A IR Remote Controller works in a line of sight “means the operating device must be placed in front of Remote controller” as a Transmitter (means will send signal from itself) and transmit an IR (Infrared) modulated (coded) signal (binary command codes in Electronics Engineering language) once any keys of the Remote controller pressed by you then a signal corresponding to pressed key will transmit and carrying a command which hit to the IR Receiver of electronics
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