High-Definition Television, also known as HDTV, is digitally broadcast television, which has slowly replaced analog versions with higher resolution and better image quality than standard-definition TV.
Throughout the world’s television’s history, industry giants and the Federal Communications Commission have worked to incorporate technological advances and higher definition options. These options have been made easier as bandwidth standards have improved over time.
With limited initial standardization, HD’s early adoption was slowed by technical and economic factors. It was only distributable by satellite with recording and reproduction of signal proving to be a technical difficulty early on. Japan was the first country to successfully offer public broadcasting in high definition, and in 2007 the country abandoned analog service.
Europe followed suit and first introduced the technique by airing Vienna New Year’s concert in HD on the HD1 channel in 2004. The U. S. Has also made strides in developing high-def programming. It was first introduced to the market in the 90’s by the Digital HDTV Grand Alliance, with the first broadcast airing in 1996 out of North Carolina. The country is working to make a full switch away from standard-definition television.
The three main aspects of high-def TV are frame size, scanning system and frame rate, all of which are specific to this type of broadcast. This influences resolution, which is twice that of standard-def TV, allowing for greater detail.
In order to view HDTV, a high-definition television is necessary, alongside other equipment. This may include special cable box that contains a tuner and cable card slot specific to the broadcasting system. Customers need to check with their cable provider in order to determine what equipment is necessary.
The newer, more advanced high-definition system allows for video storage and recording of live broadcasts. TiVo is one of the most widely known cable boxes allowing for such recording, as well as the ability to view more than one program at the same time.
In the United States, the Federal Communications Commission requires that cable companies provide customers with a set-top box for HD customers as a means of recording and storing.
Currently, cable companies have begun offering online purchases of televisions and cable boxes, as opposed to the typical in-store purchase with home installation. However, many customers prefer purchasing their equipment at the store, as it prevents complications with shipping and installation.
HD-ready televisions have been starting to drop significantly in price; however, the price range remains huge and varied. Some televisions can be purchased for as little four hundred American dollars, while others are selling for as much as fifteen thousand dollars. The good news is that lower prices are also making HDTVs more available to consumers.
There are several advantages to HD. This includes better picture quality, regardless of the screen size. Editing of the pictures allows for better video progression as opposed to the cutting short of frames in analog broadcasting. Also, stations can air several signals with the same bandwidth, also known as “multicasting”. This new system also allows for additional and interactive content. The major disadvantage of this new system is that it is not compatible with analog TVs, which cannot decode or display the signals. This requires converters or the purchase of a new television set.
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