|
BBC Four
BBC Four is a British free-to-air public broadcast television channel owned and operated by the BBC. It was launched on 2 March 2002"Culture, controversy and cutting edge documentary: BBC FOUR prepares to launch" BBC Press Office, 14 February 2002. Retrieved 2 April 2010. and shows a wide variety of programmes including arts, documentaries, music, international film and drama, and current affairs. It is required by its licence to air at least 100 hours of new arts and music programmes, 110 hours of new factual programmes, and to premiere twenty foreign films each year. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1080i
1080i (also known as Full HD or BT.709) is a combination of frame resolution and scan type. 1080i is used in high-definition television (HDTV) and high-definition video. The number "1080" refers to the number of horizontal lines on the screen. The "i" is an abbreviation for "interlaced"; this indicates that only the even lines, then the odd lines of each frame (each image called a video field) are drawn alternately, so that only half the number of actual image frames are used to produce video. A related display resolution is 1080p, which also has 1080 lines of resolution; the "p" refers to progressive scan, which indicates that the lines of resolution for each frame are "drawn" on the screen in sequence. The term assumes a widescreen aspect ratio of 16:9 (a rectangular TV that is wider than it is tall), so the 1080 lines of vertical resolution implies 1920 columns of horizontal resolution, or 1920 pixels × 1080 lines. A 1920 pixels × 1080 lines screen has a total of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CBBC
CBBC (initialised as Children's BBC and also known as the CBBC Channel) is a British free-to-air Public service broadcasting in the United Kingdom, public broadcast children's television channel owned and operated by the BBC. It is also the brand used for all BBC content for children aged 7–16. Its sister channel CBeebies broadcasts programming and content for children aged under 7. It broadcasts every day from 7am to 7pm (7am to 9pm from 11 April 2016 to 4 January 2022), timesharing with BBC Three. History Launched on 11 February 2002 alongside its sister channel, CBeebies, which serves the under 6 audience, the name was previously used to brand all BBC Children's and Education, BBC Children's content carried on BBC One and BBC Two. CBBC was named Channel of the Year at the Children's British Academy of Film and Television Arts, BAFTA awards in November 2008, 2012 and 2015. The channel averages 300,000 viewers daily. The channel originally shared bandwidth on the Freeview (UK ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artificial Intelligence
Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech recognition, computer vision, translation between (natural) languages, as well as other mappings of inputs. The ''Oxford English Dictionary'' of Oxford University Press defines artificial intelligence as: the theory and development of computer systems able to perform tasks that normally require human intelligence, such as visual perception, speech recognition, decision-making, and translation between languages. AI applications include advanced web search engines (e.g., Google), recommendation systems (used by YouTube, Amazon and Netflix), understanding human speech (such as Siri and Alexa), self-driving cars (e.g., Tesla), automated decision-making and competing at the highest level in strategic game systems (such as chess and G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC Northern Ireland
BBC Northern Ireland ( ga, BBC Thuaisceart Éireann; Ulster-Scots: ''BBC Norlin Airlan'') is a division of the BBC and the main public broadcaster in Northern Ireland. It is widely available across both Northern Ireland and the Republic of Ireland. BBC Northern Ireland is one of the four BBC national regions, together with the BBC English Regions, BBC Scotland and BBC Cymru Wales. Based at Broadcasting House, Belfast, it provides television, radio, online and interactive television content. BBC Northern Ireland currently employs 700 people, largely in Belfast. BBC Northern Ireland has two TV channels - BBC One Northern Ireland, BBC Two Northern Ireland; and two radio stations - BBC Radio Ulster and BBC Radio Foyle. Television BBC Northern Ireland operates two television stations: BBC One Northern Ireland and BBC Two Northern Ireland. BBC Northern Ireland funds an opt-out service with the majority of this output made in the independent sector. Some output that or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Program Guide
Electronic programming guides (EPGs) and interactive programming guides (IPGs) are menu-based systems that provide users of television, radio and other media applications with continuously updated menus that display scheduling information for current and upcoming broadcast programming (most commonly, TV listings). Some guides also feature backward scrolling to promote their catch up content. They are commonly known as guides or TV guides. Non-interactive electronic programming guides (sometimes known as "navigation software") are typically available for television and radio, and consist of a digitally displayed, non-interactive menu of programming scheduling information shown by a cable or satellite television provider to its viewers on a dedicated channel. EPGs are transmitted by specialized video character generation (CG) equipment housed within each such provider's central headend facility. By tuning into an EPG channel, a menu is displayed that lists current and upcom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statistical Time Division Multiplexing
Statistical multiplexing is a type of communication link sharing, very similar to dynamic bandwidth allocation (DBA). In statistical multiplexing, a communication channel is divided into an arbitrary number of variable bitrate digital channels or data streams. The link sharing is adapted to the instantaneous traffic demands of the data streams that are transferred over each channel. This is an alternative to creating a fixed sharing of a link, such as in general time division multiplexing (TDM) and frequency division multiplexing (FDM). When performed correctly, statistical multiplexing can provide a link utilization improvement, called the ''statistical multiplexing gain''. Statistical multiplexing is facilitated through packet mode or packet-oriented communication, which among others is utilized in packet switched computer networks. Each stream is divided into packets that normally are delivered asynchronously in a first-come first-served fashion. In alternative fashion, the pack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Terrestrial Television
Digital terrestrial television (DTTV or DTT, or DTTB with "broadcasting") is a technology for terrestrial television in which land-based (terrestrial) television stations broadcast television content by radio waves to televisions in consumers' residences in a digital format. DTTV is a major technological advance over the previous analog television, and has largely replaced analog which had been in common use since the middle of the 20th century. Test broadcasts began in 1998 with the changeover to DTTV (aka Analog Switchoff (ASO), or Digital Switchover (DSO)) beginning in 2006 and is now complete in many countries. The advantages of ''digital'' terrestrial television are similar to those obtained by digitising platforms such as cable TV, satellite, and telecommunications: more efficient use of limited radio spectrum bandwidth, provision of more television channels than analog, better quality images, and potentially lower operating costs for broadcasters (after the initial up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenwich Mean Time
Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London, counted from midnight. At different times in the past, it has been calculated in different ways, including being calculated from noon; as a consequence, it cannot be used to specify a particular time unless a context is given. The term 'GMT' is also used as one of the names for the time zone UTC+00:00 and, in UK law, is the basis for civil time in the United Kingdom. English speakers often use GMT as a synonym for Coordinated Universal Time (UTC). For navigation, it is considered equivalent to UT1 (the modern form of mean solar time at 0° longitude); but this meaning can differ from UTC by up to 0.9s. The term GMT should thus not be used for purposes that require precision. Because of Earth's uneven angular velocity in its elliptical orbit and its axial tilt, noon (12:00:00) GMT is rarely the exact moment the Sun crosses the Greenwich Meridian and reaches its highest po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC Four
BBC Four is a British free-to-air public broadcast television channel owned and operated by the BBC. It was launched on 2 March 2002"Culture, controversy and cutting edge documentary: BBC FOUR prepares to launch" BBC Press Office, 14 February 2002. Retrieved 2 April 2010. and shows a wide variety of programmes including arts, documentaries, music, international film and drama, and current affairs. It is required by its licence to air at least 100 hours of new arts and music programmes, 110 hours of new factual programmes, and to premiere twenty foreign films each year. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Television Channel
A television channel is a terrestrial frequency or virtual number over which a television station or television network is distributed. For example, in North America, "channel 2" refers to the terrestrial or cable band of 54 to 60 MHz, with carrier frequencies of 55.25 MHz for NTSC analog video ( VSB) and 59.75 MHz for analog audio ( FM), or 55.31 MHz for digital ATSC ( 8VSB). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider Depending on the multinational bandplan for a given regional n, analog television channels are typically 6, 7, or 8 MHz in bandwidth, and therefore television channel frequencies vary as well. Channel numbering is also different. Digital terrestrial television channels are the same as their analog predecessors for legacy reasons, however through multiplexing, each physical radio frequency (RF) channel can carry several digital subchanne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Service Broadcasting In The United Kingdom
In the United Kingdom, the term public service broadcasting (PSB) refers to broadcasting intended for public benefit rather than to serve purely commercial interests. The communications regulator Ofcom requires that certain television and radio broadcasters fulfil certain requirements as part of their license to broadcast. All of the television and radio stations have a public service remit, including those that broadcast digitally. History The BBC, whose broadcasting in the UK is funded by a licence fee and does not sell advertising time, is most notable for being the first public service broadcaster in the UK. Its first director general, Lord Reith introduced many of the concepts that would later define public service broadcasting in the UK when he adopted the mission to "''inform, educate and entertain''". With the launch of the first commercial broadcaster ITV in 1955, the government required that the local franchises fulfilled a similar obligation, mandating a certain le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC IPlayer
BBC iPlayer (stylised as iPLAYER or BBC iPLAYER) is a video on demand service from the BBC. The service is available on a wide range of devices, including mobile phones and tablets, personal computers and smart televisions. iPlayer services delivered to UK-based viewers feature no commercial advertising. The terms BBC iPlayer, iPlayer, and BBC Media Player refer to various methods of viewing or listening to the same content. Viewing or recording live television broadcasts from any UK broadcaster or viewing BBC TV catch-up or BBC TV on-demand programmes in the UK without a Television licensing in the United Kingdom, TV licence is a criminal offence. In 2015, the BBC reported that it was moving towards playing audio and video content via open HTML5 standards in web browsers rather than via Flash or its Media Player mobile app. On 17 October 2018, the BBC iPlayer Radio brand was replaced with BBC Sounds. In 2019, the BBC improved the format quality, taking the highest available o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> BBC Northern Ireland")
