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:
Freeview is the United Kingdom's sole digital terrestrial television platform. It is operated by Everyone TV and DTV Services Ltd, a joint venture between the BBC, ITV, Channel 4, Channel 5 and Sky. It was launched on 30 October 2002, taking over the licence from ITV Digital which collapsed that year. The service provides consumer access via an aerial to the seven DTT multiplexes covering the United Kingdom. As of July 2020, it has 85 TV channels, 26 digital radio channels, 10 HD channels, six text services, 11 streamed channels, and one interactive channel.
Digital terrestrial television is a technology for terrestrial television where television stations broadcast television content in a digital format. DTTV is a major technological advance over analog television, and has largely replaced analog television broadcast, which had been in common use since the middle of the 20th century. Test broadcasts began in 1998 with the changeover to DTTV, also known as the Analog Switchoff (ASO) or Digital Switchover (DSO), which began in 2006 and is now complete in many countries. The advantages of digital terrestrial television are similar to those obtained by digitizing platforms such as cable TV, satellite, and telecommunications: more efficient use of radio spectrum bandwidth, provision of more television channels than analog, better quality images, and potentially lower operating costs for broadcasters.
Malaysian television broadcasting was introduced on 28 December 1963. Colour television was introduced on 28 December 1978. Full-time colour transmissions were officially inaugurated on New Year's Day 1982. There are currently 16 national free-to-air terrestrial television channels in Malaysia and 3 national pay subscription television operators in Malaysia.
Freesat is a British free-to-air satellite television service, first formed as a joint venture between the BBC and ITV plc and now owned by Everyone TV. The service was formed as a memorandum in 2007 and has been marketed since 6 May 2008. Freesat offers a satellite alternative to the Freeview service on digital terrestrial television, with a broadly similar selection of channels available without subscription for users purchasing a receiver.
DVB-T2 is an abbreviation for "Digital Video Broadcasting – Second Generation Terrestrial"; it is the extension of the television standard DVB-T, issued by the consortium DVB, devised for the broadcast transmission of digital terrestrial television. DVB has been standardized by ETSI.
In Malaysia, digital television broadcasts, DTV or DHD, can be received via cable, internet, satellite, or via free over-the-air (OTA) digital terrestrial television - much like analogue television broadcasts have been. It began in the mid-1990s with the introduction of the Astro satellite television service, now followed by new paid television services in the 2000s, as well as the digitalisation of over-the-air TV which was expected to be complete by the mid-2010s before being shelved. This article discusses various platforms where DTV is applied in Malaysia, including Digital Video Broadcasting (DVB) and Internet Protocol Television (IPTV). Following its successful nationwide digital transition on 31 October 2019, the country became the third in Southeast Asia with digital broadcasts after neighbouring Brunei and Singapore.
Digital terrestrial television in the Philippines began in 2015 with the implementation of ISDB-T, currently coexisting with analog television that operates on the NTSC standard after the set analog switch-off (ASO) deadline encountered multiple postponements.
Television in Italy was introduced in 1939, when the first experimental broadcasts began. However, this lasted for a very short time: when fascist Italy entered World War II in 1940, all transmissions were interrupted, and were resumed in earnest only nine years after the end of the war, on January 3, 1954.
The DTG is the association for British digital television broadcasters and annually publish and maintain the technical specifications for digital terrestrial television (DTT) in the United Kingdom, which is known as the D-Book and is used by Freeview, Freeview HD, FreeSat and YouView. The association consists of over 120 UK and international members who can participate in DTG activities to varying degrees, depending on their category of membership.
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 (DTT), a major benefit being extra frequencies on the radio spectrum and lower broadcasting costs, as well as improved viewing qualities for consumers.
Freeview is the brand name of the digital terrestrial television platform in Australia intended to bring all of free-to-air (FTA) broadcasters onto a consistent marketing platform, to compete against subscription television, in particular Foxtel. The strategy coincided with the expansion to 3 digital channels for each FTA network and the planned phasing out of analog television in Australia. Important services from Freeview include its free-to-air channels with an enhanced EPG across all channels. Freeview also certifies televisions, set-top boxes and personal video recorders (PVR) which meet its standards.
Hybrid Broadcast Broadband TV (HbbTV) is both an industry standard and promotional initiative for hybrid digital TV to harmonise the broadcast, Internet Protocol Television (IPTV), and broadband delivery of entertainment to the end consumer through connected TVs and set-top boxes. The HbbTV Association, comprising digital broadcasting and Internet industry companies, has established a standard for the delivery of broadcast TV and broadband TV to the home, through a single user interface, creating an open platform as an alternative to proprietary technologies. Products and services using the HbbTV standard can operate over different broadcasting technologies, such as satellite, cable, or terrestrial networks.
All-Asian Satellite Television and Radio Operator, doing business as Astro, is a Malaysian satellite television, streaming television and IPTV provider. Astro is a wholly-owned subsidiary of Astro Malaysia Holdings Berhad and is operated by MEASAT Broadcast Network Systems Sdn. Bhd. It operates in Malaysia and Brunei and operates from the All Asia Broadcast Centre (AABC) in Kuala Lumpur and MEASAT in Cyberjaya.
Saorview is the national digital terrestrial television (DTT) service in Ireland. It is owned by RTÉ and operated by 2RN.
NJOI is a Malaysian free-to-view satellite and digital television service launched on 18 February 2012 in collaboration with the government of Malaysia and Astro. It was officially announced by sixth Prime Minister of Malaysia, Najib Razak on 20 December 2011. At launch, the service provided 18 television channels and 19 radio stations. However, existing Astro customers may purchase this service through separate account.
RTM TV Okey is a Malaysian free-to-air television channel operated by Radio Televisyen Malaysia dedicated to East Malaysians and urban youths. It was launched on 21 March 2018 and airs programmes in English, Malay, and East Malaysian languages such as Bajau, Dusun, Kadazan (Sabah) and Iban (Sarawak).
Awesome TV is a free-to-air Malaysian television channel owned by Awesome Media Network Sdn Bhd. The channel features first-run local original production and foreign content. Awesome TV started its trial broadcast on 28 July 2020 and full operation started on 1 August 2020. Awesome TV can be viewed for free nationwide via MYTV platform on Channel 112 and Astro on Channel 123.
