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- World_System_Teletext abstract "World System Teletext (or WST) is the name of a standard for encoding and displaying teletext information, which is used as the standard for teletext throughout Europe today.It originally stems from the UK standard developed by the BBC and the UK Independent Broadcasting Authority in 1974 for teletext transmission, extended in 1976 as the Broadcast Teletext Specification. With some tweaks to allow for alternative national character sets, and adaptations to the NTSC 525-line system as necessary, this was then promoted internationally as "World System Teletext". It was accepted by CCIR in 1986 under international standard CCIR 653 (now ITU-R BT.653) as one of four recognised standards for teletext worldwide, and may now most commonly be referred to as CCIR Teletext System B.Almost all television sets sold in Europe since the early ’80s have built-in WST-standard teletext decoders as a feature.WST is used for all teletext services in Europe & Scandinavia, including Ceefax from the BBC and services from Teletext on ITV in the United Kingdom, ZDFtext from ZDF and ARDText from ARD in Germany, and Tekst-TV from NRK in Norway, among many other teletext services offered by other television networks throughout the European continent.In the early 1980s a number of higher extension levels were envisaged for the specification, based on ideas then being promoted for worldwide videotex standards (telephone dial-up services offering a similar mix of text and graphics). The proposed higher content levels included geometrically-specified graphics (Level 4), and higher-resolution photographic-type images (Level 5), to be conveyed using the same underlying mechanism at the transport layer. In the event only Level 2.5 was implemented, in some countries from the late 1990s, allowing some viewers with appropriate equipment to see the pages enhanced with a more flexible use of a wider range of colours, smoother graphics, and better international language support.".
- World_System_Teletext wikiPageExternalLink ets_300706e01p.pdf.
- World_System_Teletext wikiPageExternalLink enhenced-teletext-specs.pdf.
- World_System_Teletext wikiPageID "3614305".
- World_System_Teletext wikiPageLength "4136".
- World_System_Teletext wikiPageOutDegree "31".
- World_System_Teletext wikiPageRevisionID "677032220".
- World_System_Teletext wikiPageWikiLink ARD_(TV).
- World_System_Teletext wikiPageWikiLink ARD_(broadcaster).
- World_System_Teletext wikiPageWikiLink BBC.
- World_System_Teletext wikiPageWikiLink CBS.
- World_System_Teletext wikiPageWikiLink Category:Teletext.
- World_System_Teletext wikiPageWikiLink Ceefax.
- World_System_Teletext wikiPageWikiLink Dick_Smith_(retailer).
- World_System_Teletext wikiPageWikiLink Dick_Smith_Electronics.
- World_System_Teletext wikiPageWikiLink Electra_(teletext).
- World_System_Teletext wikiPageWikiLink Europe.
- World_System_Teletext wikiPageWikiLink ExtraVision.
- World_System_Teletext wikiPageWikiLink Germany.
- World_System_Teletext wikiPageWikiLink ITU-R.
- World_System_Teletext wikiPageWikiLink ITV_(TV_network).
- World_System_Teletext wikiPageWikiLink Independent_Broadcasting_Authority.
- World_System_Teletext wikiPageWikiLink NABTS.
- World_System_Teletext wikiPageWikiLink NBC.
- World_System_Teletext wikiPageWikiLink NRK.
- World_System_Teletext wikiPageWikiLink NTSC.
- World_System_Teletext wikiPageWikiLink Norpak.
- World_System_Teletext wikiPageWikiLink Norway.
- World_System_Teletext wikiPageWikiLink TBS_(TV_channel).
- World_System_Teletext wikiPageWikiLink TBS_Superstation.
- World_System_Teletext wikiPageWikiLink Teletext.
- World_System_Teletext wikiPageWikiLink Teletext_Ltd..
- World_System_Teletext wikiPageWikiLink United_Kingdom.
- World_System_Teletext wikiPageWikiLink United_States.
- World_System_Teletext wikiPageWikiLink Videotex.
- World_System_Teletext wikiPageWikiLink ZDF.
- World_System_Teletext wikiPageWikiLink Zenith_Electronics.
- World_System_Teletext wikiPageWikiLink Zenith_Electronics_Corporation.
- World_System_Teletext wikiPageWikiLinkText "WST".
- World_System_Teletext wikiPageWikiLinkText "World Standard Teletext".
- World_System_Teletext wikiPageWikiLinkText "World System Teletext".
- World_System_Teletext hasPhotoCollection World_System_Teletext.
- World_System_Teletext subject Category:Teletext.
- World_System_Teletext hypernym Standard.
- World_System_Teletext type Work.
- World_System_Teletext comment "World System Teletext (or WST) is the name of a standard for encoding and displaying teletext information, which is used as the standard for teletext throughout Europe today.It originally stems from the UK standard developed by the BBC and the UK Independent Broadcasting Authority in 1974 for teletext transmission, extended in 1976 as the Broadcast Teletext Specification.".
- World_System_Teletext label "World System Teletext".
- World_System_Teletext sameAs m.09q0zk.
- World_System_Teletext sameAs Q8036281.
- World_System_Teletext sameAs Q8036281.
- World_System_Teletext wasDerivedFrom World_System_Teletext?oldid=677032220.
- World_System_Teletext isPrimaryTopicOf World_System_Teletext.