Cable Television

Enlarge picture
Coaxial cable is often used to transmit cable television into the house.

Cable television is a system of providing cocoy television to consumers via radio frequency signals transmitted to televisions through fixed optical fibers or coaxial cables as opposed to the over-the-air method used in traditional television broadcasting (via radio waves) in which a television antenna is required. FM radio programming, high-speed Internet, telephony and similar non television services may also be provided.

The abbreviation CATV is often used to mean "Cable TV". It originally stood for Community Antenna Television, from cable television's origins in 1948: in areas where over-the-air reception was limited by mountainous terrain, large "community antennas" were constructed, and cable was run from them to individual homes.

It is most commonplace in North America, Europe, Australia and East Asia, though it is present in many other countries, mainly in South America and the Middle East. Cable TV has had little success in Africa, as it is not cost-effective to lay cables in sparsely populated areas, and although so-called "wireless cable" or microwave-based systems are used, "direct-to-home" satellite television is far more popular, especially in South Africa.

Cable television deployments


Cable television had its origins in the 1960s, when a CATV service started to operate in Junín.
Cable television is distributed in Brazil by various companies.
The first cable system started to operate in the early 1960s in Monterrey, as a CATV service (an antenna at the top of the Loma Larga, which could get TV signals from South Texas). Most of the other major cities didn't develop cable systems until the late 1980s, due to government censorship. By 1989 the industry had had a major impulse with the founding of Multivisión—a MMDS system who started to develop its own channels in Spanish—and the later development of companies such as Cablemas and Megacable.

Over the past few years, many US networks have started to develop content for the Latin American market, such as CNN en Español, MTV, Cartoon Network, Disney Channel, Nickelodeon, and others. The country also has a DTH service called SKY (Televisa & News Corp. owned). Recently DirecTV merged with Sky. The dominant company nowadays is Megacable and Grupo HEVI.[1]
United States
The majority of American television viewers get their signal from CATV.


There are many cable operaters as Tbroad, C&M, CJ, etc in Korea. The CableTV subscriber is approximately 14 million. The cable operater provide TPS to subscriber in Korea.
Hong Kong
Only one traditional cable provider operates in Hong Kong, i-Cable Communications Limited (branded as "CableTV"). Another three operators offer pay-TV via DSL and Ethernet, they are Now Broadband TV (PCCW), HKBN Digital TV and TVB PayVision.

Many people in Hong Kong subscribe to satellite TV services like STAR TV.
Kabelvision is the first cable television operator which starts its operation in 1995. In 2006, its holding company launches Digital 1, the latest cable television operator that requires digital setup box to be installed. Some of Kabelvision] network was later converted to Digital 1. In 2007, the holding company of the two cable television operator rebranded the two service as First Media home cable which incorporates Digital 1 technology. The company is owned by Lippo Group.
StarHub Cable Vision is the sole cable television operator in Singapore, where private ownership of satellite dishes is banned. StarHub Cable Vision was formed as a result of a merger between StarHub and Singapore Cable Vision on 15 May 2002. The latter first began broadcasting as a terrestrial pay-television operator in 1992 as the first cable network was not completed until 1995. Around 15% of households and offices in Singapore are connected to the StarHub network.
Sri Lanka
Lanka Broadband Networks is the only pay television broadcaster using cable networks to serve 10,000 customers.
Truevisions[1] is only exclusive CATV in Thailand, formerly known as UBC (United Broadcasting Corporation). Truevision is a subsidiary of True[2] provides CATV only in Bangkok area while DSTV (Digital Satellite TV) outside Bangkok.
Mega TV was launched in 1996 by TV3 as the only cable television service. However, it fail to expand its content, and so, it closed down in 2001, replaced by its competitor, the satellite television network Astro.


According the European Audiovisual Observatory, there were 58 million cable households in the European Union as of 31 December 2004, i.e. a rate of penetration of 32 % of the television households. 5.7 millions were connected to digital networks.
Belgium is the second most dense cabled country in the world after the Netherlands with over 99% of all households connected to cable television networks. Cable television was deployed nationwide in 1972 as a measure made by the government to eliminate the millions of antennas. Currently most cable companies are active on the triple-play market, offering television, telephone and internet services. Currently the analogue services are phased out to make way for digital television services and high definition television.
Romania has very high penetration rates for cable television in Europe, with over 79% of all households watching television through a CATV network in 2007 [2]. The market is extremely dynamic, and dominated by two giant companies - Romanian based RCS&RDS and US based UPC-Astral. Both additionally offer IP telephony over coaxial cable and Internet services. The national CATV network is being improved, and most households are being migrated towards digital cable solutions. Digital DTH satellite service is available throughout the country, and accounts for an additional 10-15% of the market, with only about 5% being attributed to terrestrial analogue television. Digital satellite DTH is provided by a number of companies. It is possible that Romania will not migrate to digital terrestrial systems, but completely discontinue this service, since th said investments provide limited appeal.

The reasons for this appeal started in the early '90s. After the fall of the communist regime, in 1989, there were only two state owned TV channels available (see TVR), one only being available in about 20% of the country. Private TV channels were slow to appear, because of lack of experience and high start-up costs (most startups were radio stations or newspapers). Thus, for the first three years, over the air, one would get one or two state channels and one or two local, amateurish private channels, broadcasting only a few hours a day. In this environment, cable TV companies appeared and thrived, providing 15-20 foreign channels for a very low price (at the time 2 USD or less), some with Romanian translation, offering high quality news, entertainment and especially movies or cartoons (one of the ways cable companies advertised was the availability of a cartoon channel, Cartoon Network, appealing to children, which in turn would appeal to their parents). The first two companies to provide CATV were Multicanal in Bucharest and Timiş Cablu in Timişoara, both out of business today. Many small, startup firms gradually grew, and coverage increased (coverage wars were frequent in the early period, with many cable boxes smashed, and new cable networks offering "half off for twice the channels" and immediately wiring the building for any willing persons). However, this period soon ended, with consolidation around 1995-1996. Some large companies emerged: Kappa and RCS in Bucharest, Astral in Cluj, UPC in Timişoara, TourImex in Râmnicu Vâlcea. This consolidation came with gentlemen agreements over areas of control and pricing, with claims of monopoly abounding. This process of consolidation was completed around 2005-2006, when only two big suppliers of cable remained: UPC-Astral and RDS. Internet over coaxial cable has been available since around 2000, and IP telephony (over the CATV infrastructure) since the deregulation of the market in 2003. Currently, cable TV is available in most of the country, including most rural areas (where lives roughly 50% of the population). Satellite digital TV appeared in 2004, providing coverage for the rest of the country, with both RCS&RDS and UPC-Astral having a stake in these companies. IPTV (over DSL) is also planned by Romtelecom through its TV service (Dolce), after offering Satellite digital DTH TV. However, IPTV will not be much of a competition, since the other two big ISPs are also the two biggest CATV providers.

Cable TV is very cheap for all standards, the standard/basic service, offering about 50 channels, is around 20-30 RON/month including VAT (about 7-10 €), with the most expensive service, offering 10-15 channels more, including some pay-per-view such as HBO or Cinemax, costing no more than 60-70 RON/month (around 20-23 €).
Republic of Ireland
In Switzerland, virtually all households have cable TV. Ironically, despite this good coverage, Switzerland has only a few public TV stations (two each for the German, French and Italian-speaking parts of the country); additionally, there is now only one upstart commercial network with coverage comparable to these state-run channels. To watch news or political information, Swiss channels are preferred, but in the entertainment sector (feature movies, comedies, talk shows), private TV stations from Germany, France and Italy are dominant.
United Kingdom
In the UK Cable Television had its origins in 1938, when the first Community Antenna TV systems were set up in towns including Bristol and Hull, for homes which couldn't receive transmissions over the air, operating on the national standard 405-line system. In the 1960s Rediffusion Vision was set up to provide cable television in the newer 625-line and PAL formats.

In the early 1980s Rediffusion Vision supplemented its service with other channels including The Music Box, Mirrorvision, Lifesyle Screensport, Sky Channel and TEN. The service was renamed as Rediffusion Cablevision.

In the United Kingdom, the current generation of cable television began in the late 1980s with the issue of franchises to many local operators. These small operations proved uneconomic and there was a continuing process of consolidation and re-financing.

By 2000 the two principal cable operators were NTL and Telewest. NTL's cable service was originally known as CableTel and grew rapidly through the acquisition of, among others, ComTel (which itself had bought Telecential), Comcast, Diamond Cable and finally, in 1999, the residential and small business operations of Cable & Wireless. Telewest acquired local cable operators including Eurobell (Plymouth and Sussex) Cable London (North franchise) Birmingham cable and large franchises in the North East and North West of England. The original Telewest cable company was created after mergers of United Artists and General Cable in the mid 1990's.

In 2005 it was announced that NTL and Telewest would merge, after a period of co-operation in the preceding few years. This merger was completed on 3 March 2006 with the company being named ntl Incorporated. For the time being the two brand names and services were marketed separately. However, following NTL's acquisition of Virgin Mobile, the NTL and Telewest services were rebranded Virgin Media on 2007-02-08 creating a single cable operator covering more than 95% of the UK cable market.

There are a small number of other surviving cable television companies in the UK outside of NTL including Kingston Communications (East Riding of Yorkshire), WightCable (Isle of Wight) and Smallworld (previously WightCable North) (Ayrshire, Carlisle and Lancashire).

Cable TV faces intense competition from BSkyB's Sky Digital satellite television service. Most channels are carried on both platforms. However, cable often lacks "interactive" features (e.g. text services, and extra video-screens), especially on BSkyB owned channels, and the satellite platform lacks services requiring high degrees of two-way communication, such as true video on demand.

However, subscription-funded digital terrestrial television proved less of a competitive threat. The first system, ITV Digital, went into liquidation in 2002. Top Up TV later replaced it, however this service is shrinking as the DVB-T multiplex owners are finding FTA broadcasting more profitable.

Another potential source of competition in the future will be TV over broadband internet connections; this is known as IPTV. Some IPTV services are currently available in London, while services operated in Hull ceased in April 2006. As the speed and availability of broadband connections increase, more TV content can be delivered using protocols such as IPTV. However, its impact on the market is yet to be measured, as is consumer attitude toward watching TV programmes on computers instead of television sets. At the end of 2006, BT (the UK's former state owned monopoly phone company) started offering BT Vision which is digital freeview TV using an aerial, but also incorporates on demand TV, delivered over a broadband connection and displayed on a Television. This service was started due to high broadband speeds in the UK. There are plans for a 100 MB/s to be offered.


Cable television services have been available in Australia since 1991 or 1992, with Galaxy TV being the first. It became insolvent in 1997, due to decreasing popularity with the launching of Foxtel and Austar in May of 1995, two cable services that offered more variety than Galaxy TV. Foxtel immediately commenced in supplying programming to Galaxy's subscribers on an interim basis. In 1999 Foxtel was able to significantly boost its customer base by acquiring Galaxy TV's subscribers from the Australis Media liquidator and commenced offering its services on a satellite television platform. There are currently two major and four minor cable television providers in Australia - Foxtel and Optus TV. Minor providers include Austar, TransACT, Bright Telecommunications and Neighbourhood Cable, which only operate in limited areas.

Like the United Kingdom, cable is a minority means of receiving access to subscription television in Australia. Satellite distribution is more common.

Due to its history, financial backing and market dominance, most local versions of channels are either owned directly by Foxtel and Austar or through related companies.

In terms of coverage, Foxtel's cable network covers parts of Sydney, Melbourne, Brisbane, Adelaide, and Perth. Optus's network covers small parts of Sydney, Melbourne, and Brisbane, though its restrictive subscription rules means that many people living in apartments or confined living areas may be unable to be connected.

Austar is available by satellite in most of regional and rural Australia, but does have a small cable network in the city of Darwin. TransACT is only available in the city of Canberra, where a custom cable network was developed. A similar situation used to exist in Perth where a small area was covered by Bright Telecommunications (however they closed down after lack of funding) as well in parts of Geelong, Ballarat and Mildura that are reached by Neighbourhood Cable.
New Zealand
TelstraClear operates a cable television network in Wellington, Kapiti and Christchurch. Customers can subscribe to plans incorporating between 25 and 95 channels. Most content is offered on behalf of Sky Network Television, however, some channels such as TBN, Discovery Travel and Adventure and Deutsche Welle are broadcast exclusively through TelstraClear.

Other cable-based services

Coaxial cables are capable of bi-directional carriage of signals as well as the transmission of large amounts of data. Cable television signals use only a portion of the bandwidth available over coaxial lines. This leaves plenty of space available for other digital services such as broadband internet and cable telephony.

Broadband internet is achieved over coaxial cable by using cable modems to convert the network data into a type of digital signal that can be transferred over coaxial cable. One problem with some cable systems is the older amplifiers placed along the cable routes are unidirectional thus in order to allow for uploading of data the customer would need to use an analog modem to provide for the upstream connection. This limited the upstream speed to 31.2k and prevented the always-on convenience broadband internet typically provides. Many large cable systems have upgraded or are upgrading their equipment to allow for bi-directional signals, thus allowing for greater upload speed and always-on convenience, though these upgrades are expensive.

In North America and Europe many cable operators have already introduced cable telephone service, which operates just like existing fixed line operators. This service involves installing a special telephone interface at the customer's premises that converts the analog signals from the customer's in-home wiring into a digital signal, which is then sent on the local loop (replacing the analog last mile, or POTS) to the company's switching center, where it is connected to the PSTN. The biggest obstacle to cable telephone service is the need for nearly 100% reliable service for emergency calls. One of the standards available for digital cable telephony, PacketCable, seems to be the most promising and able to work with the Quality of Service demands of traditional analog POTS service. The biggest advantage to digital cable telephone service is similar to the advantage of digital cable TV, namely that data can be compressed, resulting in much less bandwidth used than a dedicated analog circuit-switched service. Other advantages include better voice quality and integration to a VoIP network providing cheap or unlimited nationwide and international calling. Note that in many cases, digital cable telephone service is separate from cable modem service being offered by many cable companies and does not rely on IP traffic or the Internet.

Beginning in 2004 in the United States, the traditional cable television providers and traditional telecommunication companies increasingly compete in providing voice, video and data services to residences. The combination of TV, telephony and Internet access is commonly called triple play regardless of whether CATV or telcos offer it.

See also


1. ^ [3]
2. ^ [4] Romania has the highest penetration rates for cable in the Balkans - Ziarul Financiar

External links

Wharf Cable (before 1998)
Website [1] Cable TV Hong Kong (Hong Kong Cable/HKCTV), previously known as Wharf Cable before October 1998, is owned and operated by i-CABLE Communications Limited.
..... Click the link for more information.
Premium TV may refer to:
  • Cable television, a type of service providing television by way of transmission over a cable.
  • PremiumTV, a company based in Middlesex, UK.

..... Click the link for more information.
Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
..... Click the link for more information.
An optical fiber (or fibre) is a glass or plastic fiber designed to guide light along its length. Fiber optics is the overlap of applied science and engineering concerned with such optical fibers.
..... Click the link for more information.
Coaxial cable is an electrical cable consisting of a round conducting wire, surrounded by an insulating spacer, surrounded by a cylindrical conducting sheath, usually surrounded by a final insulating layer (jacket).
..... Click the link for more information.
FM broadcasting is a broadcast technology invented by Edwin Howard Armstrong that uses frequency modulation (FM) to provide high-fidelity sound over broadcast radio.
Main article: frequency modulation

Broadcast bands

..... Click the link for more information.
high-speed Internet, because it usually has a high rate of data transmission. In general, any connection to the customer of 256 kbit/s (0.256 Mbit/s) or more is considered broadband Internet. The International Telecommunication Union Standardization Sector (ITU-T) recommendation I.
..... Click the link for more information.
In telecommunication, telephony (IPA pronunciation: [tə'lɛfəˌni]) encompasses the general use of equipment to provide voice communication over distances, specifically by connecting telephones to each other.
..... Click the link for more information.

North America is a continent [1] in the Earth's northern hemisphere and (chiefly) western hemisphere. It is bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the southeast by the Caribbean Sea, and on the south and west
..... Click the link for more information.
Europe is one of the seven traditional continents of the Earth. Physically and geologically, Europe is the westernmost peninsula of Eurasia, west of Asia. Europe is bounded to the north by the Arctic Ocean, to the west by the Atlantic Ocean, to the south by the Mediterranean Sea,
..... Click the link for more information.
Advance Australia Fair [1]

Capital Canberra

Largest city Sydney
..... Click the link for more information.
East Asia is a subregion of Asia that can be defined in either geographical or cultural terms. Geographically, it covers about 12,000,000 km², or about 28% of the Asian continent and about 15% bigger than the area of Europe. More than 1.
..... Click the link for more information.

South America is a continent of the Americas, situated entirely in the Western Hemisphere and mostly in the Southern Hemisphere. It is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie
..... Click the link for more information.
Middle East is a historical and political region of Africa-Eurasia with no clear boundaries. The term "Middle East" was popularized around 1900 in Britain, and has been criticized for its loose definition.
..... Click the link for more information.
Africa is the world's second-largest and second most-populous continent, after Asia. At about 30,221,532 km² (11,668,545 sq mi) including adjacent islands, it covers 6% of the Earth's total surface area, and 20.4% of the total land area.
..... Click the link for more information.
The of this article or section may be compromised by "weasel words".
You can help Wikipedia by removing weasel words. Satellite television is television delivered by way of communications satellites, as compared to conventional terrestrial television and cable television.
..... Click the link for more information.

..... Click the link for more information.
Junín is a city in province of Buenos Aires, Argentina, and capital of the municipality of Junín. It has a population of 82,427 (2001 census [INDEC] ) and is situated 260 km west of Buenos Aires.

Junín is the city where Eva Perón (Evita) was raised.
..... Click the link for more information.
Ordem e Progresso   (Portuguese)
"Order and Progress"
Hino Nacional Brasileiro
..... Click the link for more information.
Megacable is the largest cable operator in México. It offers a wide variety of television signals over 59 mayor cities in the Republic of México, including Guadalajara, Hermosillo, Veracruz, Xalapa, Tuxtla Gutiérrez, Mazatlán, Culiacán, and Tepic, among others.
..... Click the link for more information.
CNN en Español is CNN's Spanish language news network. It broadcasts the latest world news, business, sports and entertainment headlines in Spanish 24 hours a day from CNN's global headquarters in Atlanta, Georgia. CNN en Español launched March 17, 1997.
..... Click the link for more information.
DirecTV Channel 331
Dish Network Channel 160
Available on many cable systems Check local listings for channels

MTV (Music Television) is an American cable television network based in New York City.
..... Click the link for more information.
Cartoon Network is a cable television network created by Turner Broadcasting which primarily shows animated programming. The original American channel began broadcasting on October 1, 1992 with the Bugs Bunny short Rhapsody Rabbit being its first-ever aired program.
..... Click the link for more information.
Editing of this page by unregistered or newly registered users is currently disabled due to vandalism.
If you are prevented from editing this page, and you wish to make a change, please discuss changes on the talk page, request unprotection, log in, or .
..... Click the link for more information.
DirecTV Channel 299/300
Dish Network Channel 170/171
Available on most cable systems Check local listings for channels

Nickelodeon (commonly referred to as Nick
..... Click the link for more information.
Megacable is the largest cable operator in México. It offers a wide variety of television signals over 59 mayor cities in the Republic of México, including Guadalajara, Hermosillo, Veracruz, Xalapa, Tuxtla Gutiérrez, Mazatlán, Culiacán, and Tepic, among others.
..... Click the link for more information.
Cable television in the United States is a common form of television delivery, generally by subscription. Cable television first became available in the United States in 1948, with subscription services in 1949. Recent data shows that 84.
..... Click the link for more information.
March of the Volunteers[1]

Capital None[2]
Largest district (population) Sha Tin District
..... Click the link for more information.
i-CABLE Communications Limited (a Hong Kong Cable Television Limited holding company) SEHK: 1097 NASDAQ:  ICAB , i-CABLE in short, is an Internet Service Provider in Hong Kong.
..... Click the link for more information.
DSL or xDSL, is a family of technologies that provide digital data transmission over the wires of a local telephone network. DSL originally stood for digital subscriber loop, although in recent years, many have adopted digital subscriber line
..... Click the link for more information.

This article is copied from an article on - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.