Astra is the brand name for a number of geostationary communication satellites, both individually and as a group, which are owned and operated by SES S.A., a global satellite operator based in Betzdorf, in eastern Luxembourg. The name is also used to describe the pan-European broadcasting system provided by these satellites, the channels carried on them, and even the reception equipment.
Sky UK Limited is a British broadcaster and telecommunications company that provides television and broadband Internet services, fixed line and mobile telephone services to consumers and businesses in the United Kingdom. It is a subsidiary of Sky Group and from 2018 onwards, part of Comcast. It is the UK's largest pay-TV broadcaster with 12.7 million customers as of the end of 2019 for its digital satellite TV platform. Sky's flagship products are Sky Q and the internet-based Sky Glass, and its flagship channels are Sky Showcase, Sky Sports and Sky Atlantic.
SES S.A. is a Luxembourgish satellite telecommunications network provider supplying video and data connectivity worldwide to broadcasters, content and internet service providers, mobile and fixed network operators, governments and institutions.
SES Americom was a major commercial satellite operator of North American geosynchronous satellites based in the United States. The company started as RCA Americom in 1975 before being bought by General Electric in 1986 and then later acquired by SES S.A. in 2001. In September 2009, SES Americom and SES New Skies merged into SES World Skies.
Television in Germany began in Berlin on 22 March 1935, broadcasting for 90 minutes three times a week. It was home to the first public television station in the world, named Fernsehsender Paul Nipkow.
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.
Sky+ HD was the brand name of the HDTV service launched by Sky plc on 22 May 2006 in the United Kingdom and Ireland to enable high definition channels on Sky to be viewed. For the first two years after launch, the service was branded Sky HD. The service requires the user to have a Sky+ HD Digibox and an HD ready TV. A subscription to the original HD pack carries an extra fee of £10.25 a month in addition to the standard Sky subscription, allowing customers to view HD channels corresponding to the channel packs subscribed to. Additional Pay-Per-View events on Sky Box Office HD are not available to customers unless they subscribe to the Sky HD pack.
Sky Deutschland GmbH, branded as Sky, is a German media company that operates a direct broadcast satellite Pay TV platform in Germany, Austria and Switzerland. It provides a collection of basic and premium digital subscription television channels of different categories via satellite and cable television.
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 BT TV is provided by BT. 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%.
High-definition television describes a television system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since 1936; in more recent times, it refers to the generation following standard-definition television (SDTV), often abbreviated to HDTV or HD-TV. It is the current de facto standard video format used in most broadcasts: terrestrial broadcast television, cable television, satellite television and Blu-ray Discs.
Astra 23.5°E is a group of Astra communications satellites co-located at the 23.5° east position in the Clarke Belt owned and operated by SES based in Betzdorf, Luxembourg. 23.5° east is one of the major TV satellite positions serving Europe.
Astra 19.2°E is the name for the group of Astra communications satellites co-located at the 19.2°East orbital position in the Clarke Belt that are owned and operated by SES based in Betzdorf, Luxembourg.
Skylink is a satellite service that offers Czech and Slovak TV and radio stations to residents of Slovakia and the Czech Republic. The package includes channels received without subscription and pay-TV channels.
SES Platform Services GmbH was a subsidiary company of SES based in Betzdorf, Luxembourg. From its headquarters in Unterföhring near Munich, Germany, SES Platform Services operated a broadcasting centre, providing a wide range of services, including content management, playout, encryption, multiplexing, satellite uplinks and other digital TV media broadcast services for the broadcast industry.
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.
HD+ is a premium high-definition (HD) satellite television service for German users, owned by HD PLUS GmbH, a subsidiary of SES based in Unterföhring near Munich, Germany.
Satellite television varies in the different regions around the world.
Canal+ was a Spanish satellite broadcasting platform. It was previously known as Digital+ since its launch in 2003, and from 2011 it was known as Canal+, being named after its main premium channel.
Ultra-high-definition television today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9. These were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by the International Telecommunication Union (ITU).
