The difference between HD set top box and standard set top box
SD can only receive TV with standard definition programs, you can watch high-definition the SD program, can receive HD signal program, but what the program, see the signal local radio and television network provides the basic, are generally free to watch TV, in addition to paying HD programs for you to choose.
The difference between HD set top box and standard set top box1, vision. When it comes to visual effects, you have to tell the proportion of the screen display. HD set-top box video to 16:9 (mainstream) in proportion to the human eye image display effect, and often people's vision will be very wide, that is to say, the picture of the scene (Figure) is more realistic, but with the real proportion reduced. Look at the picture of the box, the scenery will look unnatural, the characters feel shorter and fatter.
2, picture quality. This is caused by the difference in resolution on the consequences of the use of high-definition set-top boxes to watch high-definition programs, picture clarity, lucidity, SD box appears fuzzy, not clear, it is worth noting that, with the HD set-top box to watch standard definition programs, the picture is still not clear, because the content of the signal source only the standard of the Qing dynasty.3, the price. Radio and television set-top box than SD set-top box to be cheap, if you want to watch high-definition programs (home using a high-definition LCD TV), the best HD box or use SD box, so that you do not need to pay the subscription fee of the hd. HD set-top boxes have a few free HD programs, but they require bandwidth support.
