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 Under such a condition, the analog broadcasting delivers the image to the whole country. (Though the image is made zonal to be exact. )Because the image is sent as it is, many of roads of the limited electric wave are used.  
 
 
 The analog broadcasting ends on July 24, 2011. The number one disadvantage is to use a lot of roads of the limited electric wave. The shift to digital broadcasting might be what because it needs the road of a lot of electric waves such as cellular phones without the method now.
 
 

 Digital broadcasting uses and delivers the technology that makes the image digital data and reduces data of compression. Therefore, a lot of information can be delivered more beautifully than the analog broadcastings on roads of electric waves that are fewer than the analog broadcasting. The data broadcasting and the program schedule, etc. can be sent because it makes it to data.

 
 
 

 A lot of advantages can be obtained by becoming digital broadcasting. First of all, the image becomes beautiful. It corresponds to the high-definition television broadcasting. Moreover, it becomes an image clear because it is digital. It comes to be able to see the electric program guide at any time for one week. The age when the program was examined in the newspaper ended. Because the data broadcasting like the weather and the news etc. only of other digital data is delivered, it is possible to see to see.
 Because the image is sent by data, the processed time feels it a little in the place where the first image appears by starting the power supply though there are not so many disadvantages.However, if the information technology develops, it is likely to cancel it.

 
 
 Hereafter, whether an interactive age comes when the technology of the main body of the television and the Internet develops is said. It comes to be able to send the TV station information in real time when having recorded a gain in numbers, it is possible to apply to a lot, and there are dozen possibilities though the home where the Internet is connected with the television is still few.