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Encyclopedia > Interactive television
Digital TV set-top box
Digital TV set-top box

Interactive television describes a number of techniques which allow viewers to interact with television content as they view it. It is sometime called interactive TV, iTV, idTV or ITV (not to be confused with the British Independent Television network). Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (2048 × 1536 pixel, file size: 604 KB, MIME type: image/jpeg) Set-top-box for digital terrestrial television from Nokia. ... Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (2048 × 1536 pixel, file size: 604 KB, MIME type: image/jpeg) Set-top-box for digital terrestrial television from Nokia. ... Independent Television (generally known as ITV, but also as ITV Network) is a public service network of British commercial television broadcasters, set up under the Independent Television Authority (ITA) to provide competition to the BBC. ITV is the oldest commercial television network in the UK. Since 1990 and the Broadcasting...

Contents

Definitions of Interactive Television

Interactive television represents a continuum from low interactivity (TV on/off, volume, changing channels) to moderate interactivity (simple movies on demand without player controls) and high interactivity in which, for example, an audience member affects the program being watched. The most obvious example of this would be any kind of real-time voting on the screen, in which audience votes create decisions that are reflected in how the show continues. A return path to the program provider is not necessary to have an interactive program experience. Once a movie is downloaded for example, controls may all be local. The link was needed to download the program, but texts and software which can be executed locally at the set-top box or IRD (intra-room decoder) may occur automatically, once the viewer enters the channel. ‹ The template below has been proposed for deletion. ... Video on demand (VOD) systems allow users to select and watch video and clip content over a network as part of an interactive television system. ... Voting is a method of decision making wherein a group such as a meeting or an electorate attempts to gauge its opinion—usually as a final step following discussions or debates. ... Computer software (or simply software) refers to one or more computer programs and data held in the storage of a computer for some purpose. ... The term set-top box (STB) describes a device that connects to a television and some external source of signal, and turns the signal into content then displayed on the screen. ... IRD may refer to the following: integrated receiver/decoder Inland Revenue Department, the taxation service for the New Zealand Government. ... A Digitrax DH163AT DCC decoder in an Athearn locomotive before the shell goes on. ...


Return path

To be truly interactive, the viewer must be able to alter the viewing experience (eg choose which angle to watch a football match), or return information to the broadcaster. Look up Football in Wiktionary, the free dictionary. ... The ASCII codes for the word Wikipedia represented in binary, the numeral system most commonly used for encoding computer information. ... Broadcasting is the distribution of audio and/or video signals which transmit programs to an audience. ...


This "return path" or "back channel" can be by telephone, mobile SMS (text messages), radio, digital subscriber lines (ADSL) or cable. For other uses, see Telephone (disambiguation). ... SMS may refer to: Short message service, a form of text messaging on cell phones Sega Master System – an 8-bit video game console from the 1980s Seiner Majestät Schiff, His Majestys Ship in the German Kaiserliche Marine and the Austro-Hungarian Navy SMS (comics), a British comic... A DSL Modem DSL or xDSL, is a family of technologies that provide digital data transmission over the wires of a local telephone network. ... 6 or 15cm outside diameter, oil-cooled cables, traversing the Grand Coulee Dam throughout. ...


Cable TV viewers receive their programs via a cable, and in the integrated cable return path enabled platforms, they use the same cable as a return path. Cable television or Community Antenna Television (CATV) (and often shortened to cable) is a system of providing television, FM radio programming and other services to consumers via radio waves transmitted directly to people’s televisions through fixed coaxial cables as opposed to the over-the-air method used in...


Satellite viewers (mostly) return information to the broadcaster via their regular telephone lines. They are charged for this service on their regular telephone bill. An Internet connection via ADSL, or other, data communications technology, is also being increasingly used. An Earth observation satellite, ERS 2 In the context of spaceflight, satellites are objects which have been placed into orbit by human endeavor. ... Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional modem can provide. ... A computer network is a system for communication among two or more computers. ...


Interactive TV can also be delivered via a terrestrial aerial (digital terrestrial TV such as 'Freeview' in the UK). In this case, there is often no 'return path' as such - so data cannot be sent back to the broadcaster (so you could not, for instance, vote on a TV show, or order a product sample) . However, interactivity is still possible as there is still the opportunity to interact with an application which is broadcast and downloaded to the set-top box (so you could still choose camera angles, play games etc). Look up Aerial in Wiktionary, the free dictionary Aerial may refer to— a dance move. ... Freeview is the operator of free digital terrestrial television in the United Kingdom, using the DVB-T standard. ... Electronic commerce, EC, e-commerce or ecommerce consists primarily of the distributing, buying, selling, marketing, and servicing of products or services over electronic systems such as the Internet and other computer networks. ... Large format camera lens. ...


Increasingly the return path is becoming a broadband IP connection, and some hybrid receivers are now capable of displaying video from either the IP connection or from traditional tuners. Some devices are now dedicated to displaying video only from the IP channel, which has given rise to IPTV - Internet Protocol Television. The rise of the "broadband return path" has given new relevance to Interactive TV, as it opens up the need to interact with Video on Demand servers, advertisers, and web site operators. Broadband in telecommunications is a term which refers to a signaling method which includes or handles a relatively wide range of frequencies which may be divided into channels or frequency bins. ... The Internet Protocol (IP) is a data-oriented protocol used for communicating data across a packet-switched internetwork. ... This article is about internet protocol television. ...


Forms of interaction

The term "interactive television" is used to refer to a variety of rather different kinds of interactivity (both as to usage and as to technology), and this can lead to considerable misunderstanding. At least three very different levels are important (see also the instructional video literature which has described levels of interactivity in computer-based instruction which will look very much like tomorrow's interactive television):


Interactivity with a TV set

The simplest, Interactivity with a TV set is the one that is already very successful. This got its first big jump with the use of the remote control to enable channel surfing behaviours, and has evolved to include video-on-demand, VCR-like pause, rewind, and fast forward, and DVRs, commercial skipping and the like. It does not change any content or its inherent linearity, only how we control the viewing of that content. DVRs allow users to time shift content in a way that most VCR owners never learned to do. This is a kind of interactive TV, and not insignificant, but it is not what is meant in any full sense of the term. It is already taking place in many homes. Calling the simple use of a remote control to turn TV sets on and off as an example of interactivity is like saying turning the pages of a book makes the book interactive. Video on demand (VOD) systems allow users to select and watch video and clip content over a network as part of an interactive television system. ... The video cassette recorder (or VCR, less popularly video tape recorder) is a type of video tape recorder that uses removable cassettes containing magnetic tape to record audio and video from a television broadcast so it can be played back later. ... Foxtel IQ, a digital video recorder and a satellite cable set-top box. ...


Interactivity with TV program content

Screenshot of a OpenTV program browser set-top box resident software
Screenshot of a OpenTV program browser set-top box resident software
Screenshot of a OpenTV email browser set-top box resident software
Screenshot of a OpenTV email browser set-top box resident software

In its deepest sense, Interactivity with TV program content is the one that is "interactive TV", but it is also the most challenging to produce. This is the idea that the program, itself, might change based on viewer input. Advanced forms, which still have uncertain prospect for becoming mainstream, include dramas where viewers get to choose or influence to plot details and endings. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ...

  • As and example, in Accidental Lovers viewers can send mobile text messages to the broadcast and the plot transforms on the basis of the keywords picked from the messages.
  • Global Television Network offers a Two-Screen Solutions interactive game for Big Brother 8 (US) "'In The House'" which allows viewers to predict who will win each competition, who's going home, as well as answering trivia questions and instant recall challenges throughout the live show. Viewers login to the Global website to play, with no downloads required.
  • Another kind of example of interactive content is the Hugo game on Television where viewers can control the game character in real time using telephone buttons.
  • Another example is the Clickvision Interactive Perception Panel used on news programmes in Britain, a kind of instant clapometer run over the telephone.

Simpler forms, which are enjoying some success, include programs that directly incorporate polls, questions, comments, and other forms of (virtual) audience response back into the show. There is much debate as to how effective and popular this kind of truly interactive TV can be. It seems likely that some forms of it will be popular, but that viewing of pre-defined content, with a scripted narrative arc, will remain a major part of the TV experience indefinitely. The United States lags far behind the rest of the developed world in its deployment of interactive television. This is a direct response to the fact that commercial television in the U.S. is not controlled by the government, whereas the vast majority of other countries' television systems are controlled by the government. These "centrally planned" television systems are made interactive by fiat, whereas in the U.S., only some members of the Public Broadcasting System has this capability. This article is considered orphaned, since there are very few or no other articles that link to this one. ... Global Television and Global TV redirect here. ... Two-screen, or synchronous solutions, are a form of interactive TV that enables information about a TV show to be accessed via the internet on a mobile phone, laptop or desktop PC. Unlike one-screen interactive TV solutions, where all of the interactivity is on the television, two-screen applications... Note: Big Brother 8 is the eighth season of the US version of the reality TV-show Big Brother on CBS. The season was announced on February 1, 2007. ... This computer game has been incorrectly referred to or categorized with the PC game misnomer. ...


Commercial broadcasters and other content providers serving the US market are constrained from adopting advanced interactive technologies because they must serve the desires of their customers, earn a level of return on investment for their investors, and are dependent on the penetration of interactive technology into viewers' homes. In association with many factors such as

  • requirements for backward compatibility of TV content formats, form factors and Customer Premise Equipment (CPE)
  • the 'cable monopoly' laws that are in force in many communities served by cable TV operators
  • consumer acceptance of the pricing structure for new TV-delivered services. Over the air (broadcasted) TV is FREE in the US, free of taxes, usage fees.
  • proprietary coding of set top boxes by cable operators and box manufacturers
  • the ability to implement 'return path' interaction in rural areas that have low, or no technology infrastructure
  • the competition from Internet-based content and service providers for the consumers' attention and budget
  • and many other technical and business road blocks,

American television content providers and operators must contend with the existing infrastructure and business models. Satellite and cable will force broadcasters to adopt interactivity or the broadcasters will become less competitive than they already are.

'In The House,'Global TV's interactive game for Big Brother 8 (US)

Image File history File links Metadata Size of this preview: 601 × 599 pixelsFull resolution (987 × 984 pixel, file size: 561 KB, MIME type: image/jpeg) Global TV offers a two-screen interactive game for Big Brother 8 called In The House available at www. ... Image File history File links Metadata Size of this preview: 601 × 599 pixelsFull resolution (987 × 984 pixel, file size: 561 KB, MIME type: image/jpeg) Global TV offers a two-screen interactive game for Big Brother 8 called In The House available at www. ... Note: Big Brother 8 is the eighth season of the US version of the reality TV-show Big Brother on CBS. The season was announced on February 1, 2007. ...

Interactivity with TV-related content

The least understood, Interactivity with TV related content may have most promise to alter how we watch TV over the next decade. Examples include getting more information about what is on the TV, whether sports, movies, news, or the like.


Similar (and most likely to pay the bills), is getting more information about what is being advertised, and the ability to buy it -- this is called "tcommerce" (short for "television commerce"). Partial steps in this direction are already becoming a mass phenomenon, as Web sites and mobile phone services coordinate with TV programs (note: this type of interactive TV is currently being called "participation TV" and GSN and TBS are proponents of it). This kind of multitasking is already happening on large scale -- but there is currently little or no automated support for relating that secondary interaction to what is on the TV compared to other forms of interactive TV. Others argue that this is more a "web-enhanced" television viewing than interactive TV. In the coming months and years, there will be no need to have both a computer and a TV set for interactive television as the interactive content will be built into the system via the next generation of set-top boxes. However, set-top-boxes have yet to get a strong foothold in American households as price (pay per service pricing model) and lack of interactive content have failed to justify their cost.


Many think of interactive TV primarily in terms of "one-screen" forms that involve interaction on the TV screen, using the remote control, but there is another significant form of interactive TV that makes use of Two-Screen Solutions, such as NanoGaming [1]. In this case, the second screen is typically a PC (personal computer) connected to a Web site application. Web applications may be synchronized with the TV broadcast, or be regular websites that provide supplementary content to the live broadcast, either in the form of information, or as interactive game or program. Some two-screen applications allow for interaction from a mobile device (phone or PDA), that run "in synch" with the show. Two-screen, or synchronous solutions, are a form of interactive TV that enables information about a TV show to be accessed via the internet on a mobile phone, laptop or desktop PC. Unlike one-screen interactive TV solutions, where all of the interactivity is on the television, two-screen applications...


Such services are sometimes called "Enhanced TV," but this term is in decline, being seen as anachronistic and misused occasionally. (Note: "Enhanced TV" originated in the mid-late 1990s as a term that some hoped would replace the umbrella term of "interactive TV" due to the negative associations "interactive TV" carried because of the way companies and the news media over-hyped its potential in the early 90's.)


Notable Two-Screen Solutions have been offered for specific popular programs by many US broadcast TV networks. Today, two-screen interactive TV is called either 2-screen (for short) or "Synchronized TV" and is widely deployed around the US by national broadcasters with the help of technology offerings from certain companies. Two-screen, or synchronous solutions, are a form of interactive TV that enables information about a TV show to be accessed via the internet on a mobile phone, laptop or desktop PC. Unlike one-screen interactive TV solutions, where all of the interactivity is on the television, two-screen applications... A television network is a distribution network for television content whereby a central operation provides programming for many television stations. ...


One-screen interactive TV generally requires special support in the set-top box, but Two-Screen Solutions, synchronized ITV applications generally do not, relying instead on Internet or mobile phone servers to coordinate with the TV and are most often free to the user. The term set-top box (STB) describes a device that connects to a television and some external source of signal, and turns the signal into content then displayed on the screen. ... Two-screen, or synchronous solutions, are a form of interactive TV that enables information about a TV show to be accessed via the internet on a mobile phone, laptop or desktop PC. Unlike one-screen interactive TV solutions, where all of the interactivity is on the television, two-screen applications...


User Interaction

Interactive TV is often described by clever marketing gurus as "lean back" interaction, as users are typically relaxing in the living room environment with a remote control in one hand. This is a very simplistic definition of interactive television that is less and less descriptive of interactive television services that are in various stages of market introduction. This is in contrast to the similarly slick marketing devised descriptor of personal computer-oriented "lean forward" experience of a keyboard, mouse and monitor. This description is becoming more distracting than useful as video game users, for example, don't lean forward while they are playing video games on their television sets, a precursor to interactive TV. A more useful mechanism for categorizing the differences between PC and TV based user interaction is by measuring the distance the user is from the Device. Typically a TV viewer is "leaning back" in their sofa, using only a Remote Control as a means of interaction. While a PC user is 2ft or 3ft from his high resolution screen using a mouse and keyboard. The demands of distance, and user input devices, requires the application's look and feel to be designed differently. Thus Interactive TV applications are often designed for the "10ft user experience" while PC applications and web pages are designed for the "3ft user experience". This style of interface design rather than the "lean back or lean forward" model is what truly distinguishes Interactive TV from the web or PC. It has been suggested that Keystroke be merged into this article or section. ... Operating a mechanical 1: Pulling the mouse turns the ball. ... A computer display monitor, usually called simply a monitor, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record. ...


In the case of Two-Screen Solutions Interactive TV, the distinctions of "lean-back" and "lean-forward" interaction become more and more indistinguishable. There has been a growing proclivity to media multitasking, in which multiple media devices are used simultaneously (especially among younger viewers). This has increased interest in two-screen services, and is creating a new level of multitasking in interactive TV. In addition, video is now ubiquitous on the web, so research can now be done to see if there is anything left to the notion of "lean back" "versus" "lean forward" uses of interactive television. Two-screen, or synchronous solutions, are a form of interactive TV that enables information about a TV show to be accessed via the internet on a mobile phone, laptop or desktop PC. Unlike one-screen interactive TV solutions, where all of the interactivity is on the television, two-screen applications...


For one-screen services, interactivity is supplied by the manipulation of the API of the particular software installed on a set-top box, referred to as 'middleware' due to its intermediary position in the operating environment. Software programs are broadcast to the set-top box in a 'carousel'. API and Api redirect here. ... To meet Wikipedias quality standards, this article or section may require cleanup. ...


On UK DTT (Freeview), in DVB-MHP systems and for OCAP, this is a DSM-CC Object Carousel. Multimedia Home Platform (DVB-MHP) is an open middleware system standard designed by the DVB project for interactive digital television. ... OpenCable Application Platform, or OCAP, is a technical software standard created by CableLabs for the cable networks of North America. ... Digital storage media command and control (DSM-CC) is a toolkit for developing control channels associated with MPEG-1 and MPEG-2 streams. ...


The set-top box can then load and execute the application. In the UK this is typically done by a viewer pressing a "trigger" button on their remote control (e.g. the red button, as in "press red"). Red Button is a button on the remote control of the digital television set top box in the UK and Malaysia. ...


Interactive TV Sites have the requirement to deliver interactivity directly from internet servers, and therefore need the set-top box's middleware to support some sort of TV Browser or content rendering system. Middleware examples like Liberate are based on a version of HTML/Javascript and have rendering capabilities built in, while others such as OpenTV and DVB-MHP can load microbrowsers and applications to deliver content from TV Sites. The name given to an Internet Site designed for TV. Unlike mobile and PC access, the use of internet sites through the TV has been small, mostly due to the poor user experience of many web on TV deployments, and the walled garden or closed business models adopted by many... HTML, short for Hypertext Markup Language, is the predominant markup language for the creation of web pages. ... It has been suggested that Client-side JavaScript be merged into this article or section. ... The current version of the article or section reads like an advertisement. ... Multimedia Home Platform (DVB-MHP) is an open middleware system standard designed by the DVB project for interactive digital television. ... The name given to an Internet Site designed for TV. Unlike mobile and PC access, the use of internet sites through the TV has been small, mostly due to the poor user experience of many web on TV deployments, and the walled garden or closed business models adopted by many...


Typically the distribution system for Standard Definition digital TV is based on the MPEG-2 specification, while High Definition distribution is likely to be based on the MPEG-4 meaning that the delivery of HD often requires a new device or set-top box. MPEG-2 is a standard for the generic coding of moving pictures and associated audio information [1]. It is widely used around the world to specify the format of the digital television signals that are broadcast by terrestrial (over-the-air), cable, and direct broadcast satellite TV systems. ... MPEG-4 is a standard used primarily to compress audio and visual (AV) digital data. ...

  • Examples of commonly-found middlewares and sources of TV Browsers include:
    • Alcatel/Microsoft TV - Used by major DSL operators such as AT&T, DTAG, Club Internet, Swisscom, TDC, BT, ...
    • DVB-MHP (Java) - Global standard widely deployed in Italy, and Korea, with some deployment in Spain, Belgium, Austria and Taiwan.
    • OCAP (Java) - US cable industry standard based on DVB-MHP
    • ETV-BIF - ETV Binary Interchange Format developed by MetaTV (now called TV Works) in association with CableLabs
    • BD-J (Java) - Interactivity layer for Blu-ray Disc based on DVB-MHP
    • OpenTV (ANSI C, HTML/JavaScript, Flash and Java) - BSkyB, Echostar, Zee Network, Digiturk, Etisalat, Liberty Global Europe UPC, Viasat, Showtime, TPS, Foxtel, Sky Italia, Starhub, Cablecom, Time Warner
    • MediaHighway (Java, MHEG-5, Pantalk) - UK terrestrial, Canal+
    • Liberate (HTML/JavaScript) - NTL, Telewest
    • WTVML (Worldwide TV Markup Language, ETSI Standard TS 102 322) - used in UK DTH
    • ICTV (HTML/JavaScript) - NTL, VNL
    • MHEG-5 (used in UK DTT and in Freeview New Zealand)
    • Alcatel Open Media Suite - Sasktel, BBTV, Kingston
    • Microsoft TV (XHTML)
    • BML - Standard used on ISDB platforms in Japan
    • Ginga - In development for the Brazilian digital television standard (SBTVD)

Development of applications using these technologies is traditionally drawn out due to the limitations of the set-top box, the large amount of testing required and the lack of standardization of deployed units. Almost all are proprietary and subject to heavy licensing restrictions. One remarkable exception to this is the WTVML specification used by Sky in the UK, where the development of TV Sites can be done by various organizations for as little as US$290. (see here and deployed unchanged using automated testing on all of Sky's different set-top box types. Multimedia Home Platform (DVB-MHP) is an open middleware system standard designed by the DVB project for interactive digital television. ... The Java platform is the name for a bundle of related programs, or platform, from Sun Microsystems which allow for developing and running programs written in the Java programming language. ... OpenCable Application Platform, or OCAP, is a technical software standard created by CableLabs for the cable networks of North America. ... Multimedia Home Platform (DVB-MHP) is an open middleware system standard designed by the DVB project for interactive digital television. ... Blu-ray discs Blu-ray Disc is a next-generation optical disc format jointly developed by a group of leading consumer electronics and PC companies called the Blu_ray Disc Association (BDA), which succeeds the Blu_ray Disc Founders (BDF). ... A blank rewritable Blu-ray disc (a BD-RE) A Blu-ray Disc (also called BD) is a high-density optical disc format for the storage of digital media, including high-definition video. ... Multimedia Home Platform (DVB-MHP) is an open middleware system standard designed by the DVB project for interactive digital television. ... The current version of the article or section reads like an advertisement. ... ANSI C (Standard C) is a variant of the C programming language. ... HTML, short for Hypertext Markup Language, is the predominant markup language for the creation of web pages. ... It has been suggested that Client-side JavaScript be merged into this article or section. ... MediaHighway is interactive television middleware software introduced in 1993 by Paris-based Canal+ Technologies, part of the Canal+ Group. ... MHEG-5 is a specification devised for the middleware of digital teletext services in the United Kingdom. ... Pantalk is an out-dated, obscure cross-platform programming language developed in the early 1980s for use on Canal Plus MediaHighway interactive tv platform and other embedded environments. ... HTML, short for Hypertext Markup Language, is the predominant markup language for the creation of web pages. ... It has been suggested that Client-side JavaScript be merged into this article or section. ... WapTV is an interactive TV technology platform comprising a microbrowser, a markup language, and a significant collection of associated software tools and services. ... ICTV is an interactive television middleware. ... HTML, short for Hypertext Markup Language, is the predominant markup language for the creation of web pages. ... It has been suggested that Client-side JavaScript be merged into this article or section. ... MHEG-5 is a specification devised for the middleware of digital teletext services in the United Kingdom. ... Founded by Steve Perlman in 1995, WebTV Networks began life as Artemis Research. ... The Extensible HyperText Markup Language, or XHTML, is a markup language that has the same depth of expression as HTML, but also conforms to XML syntax. ... Broadcast Markup Language, or BML, is an XML-based standard developed by Japanese ARIB association as a data broadcasting specification for digital HDTV broadcasting. ... This article or section is in need of attention from an expert on the subject. ... WapTV is an interactive TV technology platform comprising a microbrowser, a markup language, and a significant collection of associated software tools and services. ... The name given to an Internet Site designed for TV. Unlike mobile and PC access, the use of internet sites through the TV has been small, mostly due to the poor user experience of many web on TV deployments, and the walled garden or closed business models adopted by many...


Interactive television projects

Some interactive television projects are consumer electronics boxes which provide set-top interactivity, while other projects are supplied by the cable television companies (or multiple system operator, or MSO) as a system-wide solution. Some examples of interactive television include:

Cox Communications is a wholly-privately owned subsidiary of Cox Enterprises providing digital cable television and telecommunications services in the United States. ... Time Warner Inc. ... Comcast Corporation, (NASDAQ: CMCSA) based in Philadelphia, Pennsylvania, is the largest cable company[1] and the second largest Internet service provider in the United States. ... For other uses, see Cablevision (disambiguation). ... Full Service Network was a digital video trial performed by Time Warner in Orlando, Florida which launched on December 14, 1994 and lasted for 18 months. ... TiVo (pronounced tee-voh, IPA: ) is a popular brand of digital video recorder (DVR) in the United States. ... ReplayTV is a brand of digital video recorder (DVR), a term synonymous with personal video recorder (PVR). ... // Overview UltimateTV was a product that was developed by Microsoft in Mountain View, California, and it was released to the public on October 26, 2000. ... A typical Windows XP MCE 2005 Menu Windows XP Media Center Edition (MCE) was a version of Windows XP designed to serve as a home-entertainment hub. ... Two-screen, or synchronous solutions, are a form of interactive TV that enables information about a TV show to be accessed via the internet on a mobile phone, laptop or desktop PC. Unlike one-screen interactive TV solutions, where all of the interactivity is on the television, two-screen applications... Enhanced TV (ETV) is generally synonymous with interactive TV. It is used in particular in reference to two-screen TV + PC services, and notably the ETV service offered by ABC and ESPN for a number of popular programs such Monday Night Football, Sunday Night Football, The Academy Awards, etc. ...

Interactive Video and Data Services

IVDS is a wireless implementation of interactive TV, it utilizes part of the VHF TV frequency spectrum (218–219 MHz).[1]


References

  1. ^ IVDS

See also

IP over DVB or IP over MPEG implies that Internet Protocol datagrams are transferred over the MPEG transport stream, and are distributed using some digital television system, for example DVB-H, DVB-T, DVB-S or DVB-C. Application examples include: Data broadcast (datacast), for example a data carousel sending... Digital television (DTV) is a telecommunication system for broadcasting and receiving moving pictures and sound by means of digital signals, in contrast to analog signals used by analog (traditional) TV. DTV uses digital modulation data, which is digitally compressed and requires decoding by a specially designed television set, or a... DTV is a three-letter acronym which may mean: Direct-to-video, a method of film release which skips the theatre screening process and makes the movie readily available for home viewing Digital television Direct-to-TV, a Commodore 64 self-contained within a joystick Democracy, formerly known as DTV... The term set-top box (STB) describes a device that connects to a television and some external source of signal, and turns the signal into content then displayed on the screen. ... STB is an acronym that can stand for: set-top box, a television device that converts signals to viewable images The United States Surface Transportation Board, the successor to the Interstate Commerce Commission The StB, the secret police in Communist Czechoslovakia a graphics card manufacturer, see STB Systems The Bachelor... Enhanced TV (ETV) is generally synonymous with interactive TV. It is used in particular in reference to two-screen TV + PC services, and notably the ETV service offered by ABC and ESPN for a number of popular programs such Monday Night Football, Sunday Night Football, The Academy Awards, etc. ... Internet television (or Internet TV) is television distributed via the Internet. ... Two-screen, or synchronous solutions, are a form of interactive TV that enables information about a TV show to be accessed via the internet on a mobile phone, laptop or desktop PC. Unlike one-screen interactive TV solutions, where all of the interactivity is on the television, two-screen applications... Miro (known as Democracy Player during development and before launching in July 2007 [1]) is an Internet television application developed by the Participatory Culture Foundation (PCF). ... Datacasting is the broadcasting of data over a wide area via radio waves. ... DVB-H (Digital Video Broadcasting - Handheld) is a technical specification for bringing broadcast services to handheld receivers. ... Multimedia Home Platform (DVB-MHP) is an open middleware system standard designed by the DVB project for interactive digital television. ... MHP may stand for: Multimedia Home Platform Managed Healthcare Professional This page concerning a three-letter acronym or abbreviation is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...

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