Digital television (DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color television in the 1950s. Modern digital television is transmitted in high-definition television (HDTV) with greater resolution than analog TV. It typically uses a widescreen aspect ratio in contrast to the narrower format (4:3) of analog TV. It makes more economical use of scarce radio spectrum space; it can transmit up to seven channels in the same bandwidth as a single analog channel, and provides many new features that analog television cannot. A transition from analog to digital broadcasting began around 2000. Different digital television broadcasting standards have been adopted in different parts of the world; below are the more widely used standards:
Digital Video Broadcasting (DVB) is a set of international open standards for digital television. DVB standards are maintained by the DVB Project, an international industry consortium, and are published by a Joint Technical Committee (JTC) of the European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC) and European Broadcasting Union (EBU).
Television in Hong Kong is primarily in Cantonese and English. It is delivered through analogue and digital terrestrial, cable, IPTV, and the Internet. Satellite TV is not common, although many housing estates have dishes and re-distribute a limited number of free channels through coaxial cables. The dominant broadcaster is TVB, ViuTV and HOY TV.
TVB Jade, or simply Jade, is a Hong Kong Cantonese-language free-to-air television channel owned and operated by Television Broadcasts Limited (TVB) as its flagship service, alongside its sister network, the English-language TVB Pearl. Broadcasting started on 19 November 1967. It is headquartered at TVB City at the Tseung Kwan O Industrial Estate in Tseung Kwan O, in the Sai Kung District. Primarily broadcasting entertainment programming, TVB Jade has historically been the most dominant television channel in the region in terms of viewership, with its closest competitor having been the now-defunct ATV Home.
Canal 24 Horas is a Spanish free-to-air television channel owned and operated by Televisión Española (TVE), the television division of state-owned public broadcaster Radiotelevisión Española (RTVE). It is the corporation's all-news television channel, and is known for its 24-hour rolling news service and its live coverage of breaking news.
BBC HD was a high-definition television channel owned by the BBC. The channel was initially run as a trial from 15 May 2006 until becoming a full service on 1 December 2007 before its discontinuation on 25 March 2013. It broadcast only during the afternoon and evening and only broadcast material shot in high definition, either in a simulcast with another channel or by inserting a repeat of an HD programme.
TDM - Teledifusão de Macau, S. A. provides public broadcasting services in Macau. By running five digital terrestrial television channels, one satellite television channel and two radio channels, TDM provides local audiences with a wide range of content in Macau's two official languages, Chinese (Cantonese) and Portuguese, as well as having time-slots for English as well as Indonesian and Tagalog, which reflects the multicultural nature of the city, with 95 percent of the population being Chinese and five percent made up of Portuguese and other ethnic groups.
CCTV-4 is a Chinese free-to-air television channel. It is one of six China Central Television channels that broadcasts outside of China. It airs a variety of programs including documentaries, music, news, drama series, sports and children shows for Greater China including China, Hong Kong, Macau and Taiwan.
DTMB is the digital TV standard for mobile and fixed devices, developed in the People's Republic of China. It is used there and in both of their special administrative regions, and also in Cambodia, the Comoros, Cuba, East Timor, Laos, Vietnam, and Pakistan. In Pakistan, as part of the China–Pakistan Economic Corridor Project, ZTE Corporation will provide Pakistan Television Corporation collaboration across several digital terrestrial television technologies, staff training, and content creation, including partnerships with Chinese multinational companies in multiple areas, such as television sets and set top boxes, as a form of "International Cooperation".
ATV World, was one of two free-to-air English language television channels in Hong Kong, the other being its arch-rival TVB Pearl. Its sister station, ATV Home, broadcast in Cantonese language. It is owned and operated by Asia Television, and was broadcast from the ATV Enterprises Office at 25–37 Dai Shing Street in Tai Po Innovation Park in Tai Po, which is in the Tai Po District, in the North East region of Hong Kong's New Territories.
Kapamilya Channel is a 24-hour Philippine pay television network owned and operated by ABS-CBN Corporation, a subsidiary of the Lopez Holdings Corporation. The network's headquarters are located at the ABS-CBN Broadcasting Center in Quezon City. It serves as the flagship TV network of ABS-CBN Corporation.
There are four major forms of digital television (DTV) broadcast in the United Kingdom: a direct-to-home satellite service from the Astra 28.2°E satellites provided by Sky UK, a cable television service provided by Virgin Media ; a free-to-air satellite service called Freesat; and a free-to-air digital terrestrial service called Freeview. In addition, an IPTV system known as EE TV is provided by EE. Individual access methods vary throughout the country. 77% of the United Kingdom has access to HDTV via terrestrial digital television. Satellite is the only source of HDTV broadcast available for the remaining 23%.
The Netherlands now has three major forms of broadcast digital television. Terrestrial (DVB-T), Cable (DVB-C), and Satellite (DVB-S). In addition IPTV services are available. At the end of the first quarter of 2013 almost 84% of the households in the Netherlands had some form of digital television.
Digital Video Broadcasting (DVB) is a set of international open standards for digital television. DVB standards are maintained by the DVB Project, an international industry consortium, and are published by a Joint Technical Committee (JTC) of the European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC) and European Broadcasting Union (EBU).
TVB Plus, formerly TVB J2 is a Chinese-language free-to-air terrestrial television channel in Hong Kong. Owned by Television Broadcasts Limited (TVB) and first launched on 30 June 2008, the channel broadcasts programming aimed at youth and young adult audiences, as well as sports and financial journalism programming.
The digital television transition, also called the digital switchover (DSO), the analogue switch/sign-off (ASO), the digital migration, or the analogue shutdown, is the process in which older analogue television broadcasting technology is converted to and replaced by digital television. Conducted by individual nations on different schedules, this primarily involves the conversion of analogue terrestrial television broadcasting infrastructure to Digital terrestrial television (DTT), a major benefit being extra frequencies on the radio spectrum and lower broadcasting costs, as well as improved viewing qualities for consumers.
BTV World is a Bangladeshi Bengali-language satellite and cable television channel owned by the state-owned Bangladesh Television. It began operations on 11 April 2004 via the AsiaSat 3 satellite. It simulcasts the broadcasts of BTV Dhaka for most of its schedule, which then simulcasts BTV World's broadcasts during the off-air hours of its terrestrial feed.
CGTN Documentary is a state-run English-language documentary channel operated by the China Global Television Network (CGTN) group, owned by Chinese state broadcaster China Central Television (CCTV). It broadcasts documentaries in the English language, and is China's first state-level English-language documentary channel to broadcast globally.
The transition to high-definition television is a process by which standard-definition (SD) television signals are upgraded to a high-definition (HD) format. In this process, channels usually either simulcast their HD signals alongside the existing SD signals or broadcast exclusively in HD. The transition to the latter is often called the standard-definition television switch-off.
