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  DTV in China
•  Free DTV for Beijing
Viewers in the Chinese capital Beijing are to make the switch to watching digital television.
•  World biggest TV audience goes digital
China Central Television (CCTV) will kick-start the world´s largest DTV market next week with the launch of the first of several national digital pay-television services.
•  China sets switch off date
China plans to switch all 380m households in its territory to digital TV by 2018 in a two-stage transition, initially targeting 100m urban households by 2008.
•  China grants digital TV licenses
The monopoly held by China´s state broadcaster, China Central Television (CCTV), on digital television has been broken by the issuing of digital TV licences to four organisations.
•  China STB maker ´to triple sales´
Digital TV equipment maker DVN is planning to more than triple its set-top box sales in mainland China this year as the pace of migration from analogue to digital steps up.
•  30m digital sets in China by 2008
There will be more than 30m digital television homes in China by 2008, according to a recent report cited by China´s The People´s Daily.
The 21st Century Broadcast Media Summit
•  The Administration of Radio,Film and Television of the People´s Republic of China holds the First 21st Century Broadcast Media Summit from November 21 to 22,2004, in Beijing in combination with the actives to observe the world Television Day,November 21, as declared by the United Nations, in order to further enhance the exchange and cooperation between the Chinese media and their international counterparts and organizations in related sectors, and to promote the mutual understanding betweenthe Chinese people and peoples in other parts of the world.
•  Schedule for the 21st Century Broadcast Media Summit
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Definition of Digital TV
    What is digital television?
A Compact Disc stores music as a series of binary digits, i.e. noughts and ones. Digital Television is a television service represented in the same way. Just as CDs improved on vinyl by eliminating scratches, digital television improves on normal (or "analogue") television by eliminating interference such as ghosting.Another property of digital television is that it can be easily compressed by a computer chip. The advantage of compression is that more TV channels can be squeezed in to the same space (or "bandwidth") that would normally be occupied by a single analogue channel.
We can also put it in a simple way as follow: Digital TV brings more channel choice in better quality than analogue TV (what you get when you plug your standard TV set into the aerial on the roof).
Concept of Digital TV
•  What are the bonuses of digital TV?
More channels - e.g. Sky offers the biggest channel line-up, but check your potential provider to see if they have what you´re after. Popular channels are Sky One, E4, UK Gold, BBC Choice. Channels exist for comedy, SciFi, music, news and sport.
•  How will digital TV be interactive?
First, digital will offer advanced teletext services and programme guides. You choose the page and it appears. But this isn´t true interactivity.For two-way communication, necessary for home shopping, for example, you need to plug your set top box into a phone line.
•  Is digital TV sound better?
Digital TV sound uses a newer technology than the Nicam Stereo sound available with analogue TV. However, the technology does not provide any more channels of sound, you still only have two. It´s unlikely you will be able to hear the difference between the two systems.
•  Are digital TV pictures better?
Analogue TV pictures received through an aerial can suffer snow, ghosting, cross-channel interference and other effects, depending on where you live and how your aerial is installed. Digital pictures are different, they degrade much more quickly. This means you are likely to see either a perfect picture or no picture at all.
World of Digital TV








 
CASE 1--DTV in UK
•  What are the options?
The options open to you if you want digital tv in your home are:
路 Sky Digital (the older Sky analogue no longer exists).
路 Cable
路 Freeview
路 Homechoice
CASE 2--DTV in U.S.
• Digital TV did not appear like a bolt from the blue. Rather, it reflects the rigorous efforts of many forward-thinking people in the laboratory, marketplace and public policy arena.
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