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aria-label="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostra/Nascondi l'indice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostra/Nascondi l'indice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">SDTV</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 43 lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-43" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">43 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D9%84%D9%81%D8%B2%D8%A9_%D9%82%D9%8A%D8%A7%D8%B3%D9%8A%D8%A9_%D8%A7%D9%84%D8%AF%D9%82%D8%A9" title="تلفزة قياسية الدقة - arabo" lang="ar" hreflang="ar" data-title="تلفزة قياسية الدقة" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A2%D0%B5%D0%BB%D0%B5%D0%B2%D0%B8%D0%B7%D0%B8%D1%8F_%D1%81%D1%8A%D1%81_%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%82%D0%BD%D0%B0_%D1%80%D0%B0%D0%B7%D0%B4%D0%B5%D0%BB%D0%B8%D1%82%D0%B5%D0%BB%D0%BD%D0%B0_%D1%81%D0%BF%D0%BE%D1%81%D0%BE%D0%B1%D0%BD%D0%BE%D1%81%D1%82" title="Телевизия със стандартна разделителна способност - bulgaro" lang="bg" hreflang="bg" data-title="Телевизия със стандартна разделителна способност" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A7%8D%E0%A6%9F%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%A8%E0%A7%8D%E0%A6%A1%E0%A6%BE%E0%A6%B0%E0%A7%8D%E0%A6%A1-%E0%A6%A1%E0%A7%87%E0%A6%AB%E0%A6%BF%E0%A6%A8%E0%A6%BF%E0%A6%B6%E0%A6%A8_%E0%A6%9F%E0%A7%87%E0%A6%B2%E0%A6%BF%E0%A6%AD%E0%A6%BF%E0%A6%B6%E0%A6%A8" title="স্ট্যান্ডার্ড-ডেফিনিশন টেলিভিশন - bengalese" lang="bn" hreflang="bn" data-title="স্ট্যান্ডার্ড-ডেফিনিশন টেলিভিশন" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/SDTV" title="SDTV - catalano" lang="ca" hreflang="ca" data-title="SDTV" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Standard-definition_television" title="Standard-definition television - ceco" lang="cs" hreflang="cs" data-title="Standard-definition television" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Standard-definition_(SD)" title="Standard-definition (SD) - danese" lang="da" hreflang="da" data-title="Standard-definition (SD)" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Standard_Definition_Television" title="Standard Definition Television - tedesco" lang="de" hreflang="de" data-title="Standard Definition Television" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Standard-definition_television" title="Standard-definition television - inglese" lang="en" hreflang="en" data-title="Standard-definition television" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Normdifina_televido" title="Normdifina televido - esperanto" lang="eo" hreflang="eo" data-title="Normdifina televido" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Definici%C3%B3n_est%C3%A1ndar" title="Definición estándar - spagnolo" lang="es" hreflang="es" data-title="Definición estándar" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Tavalahutusega_televisioon" title="Tavalahutusega televisioon - estone" lang="et" hreflang="et" data-title="Tavalahutusega televisioon" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A7%D8%B3%E2%80%8C%D8%AF%DB%8C%E2%80%8C%D8%AA%DB%8C%E2%80%8C%D9%88%DB%8C" title="اس‌دی‌تی‌وی - persiano" lang="fa" hreflang="fa" data-title="اس‌دی‌تی‌وی" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/SDTV" title="SDTV - finlandese" lang="fi" hreflang="fi" data-title="SDTV" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/SDTV" title="SDTV - francese" lang="fr" hreflang="fr" data-title="SDTV" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Televisi%C3%B3n_de_definici%C3%B3n_est%C3%A1ndar" title="Televisión de definición estándar - galiziano" lang="gl" hreflang="gl" data-title="Televisión de definición estándar" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%98%D7%9C%D7%95%D7%95%D7%99%D7%96%D7%99%D7%94_%D7%91%D7%94%D7%A4%D7%A8%D7%93%D7%94_%D7%AA%D7%A7%D7%A0%D7%99%D7%AA" title="טלוויזיה בהפרדה תקנית - ebraico" lang="he" hreflang="he" data-title="טלוויזיה בהפרדה תקנית" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AE%E0%A4%BE%E0%A4%A8%E0%A4%95_%E0%A4%AA%E0%A4%B0%E0%A4%BF%E0%A4%AD%E0%A4%BE%E0%A4%B7%E0%A4%BE_%E0%A4%9F%E0%A5%87%E0%A4%B2%E0%A5%80%E0%A4%B5%E0%A4%BF%E0%A4%9C%E0%A4%A8" title="मानक परिभाषा टेलीविजन - hindi" lang="hi" hreflang="hi" data-title="मानक परिभाषा टेलीविजन" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/SDTV" title="SDTV - ungherese" lang="hu" hreflang="hu" data-title="SDTV" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8D%D5%8D%D5%80%D5%8F" title="ՍՍՀՏ - armeno" lang="hy" hreflang="hy" data-title="ՍՍՀՏ" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Televisi_definisi_standar" title="Televisi definisi standar - indonesiano" lang="id" hreflang="id" data-title="Televisi definisi standar" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E6%A8%99%E6%BA%96%E7%94%BB%E8%B3%AA%E6%98%A0%E5%83%8F" title="標準画質映像 - giapponese" lang="ja" hreflang="ja" data-title="標準画質映像" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%94%94%EC%A7%80%ED%84%B8_%ED%91%9C%EC%A4%80_%ED%85%94%EB%A0%88%EB%B9%84%EC%A0%84" title="디지털 표준 텔레비전 - coreano" lang="ko" hreflang="ko" data-title="디지털 표준 텔레비전" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Standartin%C4%97s_rai%C5%A1kos_televizija" title="Standartinės raiškos televizija - lituano" lang="lt" hreflang="lt" data-title="Standartinės raiškos televizija" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Televisyen_definisi_biasa" title="Televisyen definisi biasa - malese" lang="ms" hreflang="ms" data-title="Televisyen definisi biasa" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Standard-definition_television" title="Standard-definition television - olandese" lang="nl" hreflang="nl" data-title="Standard-definition television" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Standard-definition_television" title="Standard-definition television - norvegese bokmål" lang="nb" hreflang="nb" data-title="Standard-definition television" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/SDTV" title="SDTV - polacco" lang="pl" hreflang="pl" data-title="SDTV" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Televis%C3%A3o_de_defini%C3%A7%C3%A3o_padr%C3%A3o" title="Televisão de definição padrão - portoghese" lang="pt" hreflang="pt" data-title="Televisão de definição padrão" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Televiziune_cu_rezolu%C8%9Bie_standard" title="Televiziune cu rezoluție standard - rumeno" lang="ro" hreflang="ro" data-title="Televiziune cu rezoluție standard" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A2%D0%B5%D0%BB%D0%B5%D0%B2%D0%B8%D0%B4%D0%B5%D0%BD%D0%B8%D0%B5_%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%82%D0%BD%D0%BE%D0%B9_%D1%87%D1%91%D1%82%D0%BA%D0%BE%D1%81%D1%82%D0%B8" title="Телевидение стандартной чёткости - russo" lang="ru" hreflang="ru" data-title="Телевидение стандартной чёткости" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Staundart-defineetion_telly" title="Staundart-defineetion telly - scozzese" lang="sco" hreflang="sco" data-title="Staundart-defineetion telly" data-language-autonym="Scots" data-language-local-name="scozzese" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Standard-definition_television" title="Standard-definition television - Simple English" lang="en-simple" hreflang="en-simple" data-title="Standard-definition television" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A2%D0%B5%D0%BB%D0%B5%D0%B2%D0%B8%D0%B7%D0%B8%D1%98%D0%B0_%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D0%B4%D0%BD%D0%B5_%D1%80%D0%B5%D0%B7%D0%BE%D0%BB%D1%83%D1%86%D0%B8%D1%98%D0%B5" title="Телевизија стандардне резолуције - serbo" lang="sr" hreflang="sr" data-title="Телевизија стандардне резолуције" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Standarduppl%C3%B6st_television" title="Standardupplöst television - svedese" lang="sv" hreflang="sv" data-title="Standardupplöst television" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%82%E0%B8%97%E0%B8%A3%E0%B8%97%E0%B8%B1%E0%B8%A8%E0%B8%99%E0%B9%8C%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%A5%E0%B8%B0%E0%B9%80%E0%B8%AD%E0%B8%B5%E0%B8%A2%E0%B8%94%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B8%90%E0%B8%B2%E0%B8%99" title="โทรทัศน์ความละเอียดมาตรฐาน - thailandese" lang="th" hreflang="th" data-title="โทรทัศน์ความละเอียดมาตรฐาน" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Standard-definition_television" title="Standard-definition television - tagalog" lang="tl" hreflang="tl" data-title="Standard-definition television" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Standart_%C3%A7%C3%B6z%C3%BCn%C3%BCrl%C3%BCkl%C3%BC_televizyon" title="Standart çözünürlüklü televizyon - turco" lang="tr" hreflang="tr" data-title="Standart çözünürlüklü televizyon" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A2%D0%B5%D0%BB%D0%B5%D0%B1%D0%B0%D1%87%D0%B5%D0%BD%D0%BD%D1%8F_%D0%B7%D1%96_%D1%81%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%82%D0%BD%D0%BE%D1%8E_%D1%80%D0%BE%D0%B7%D0%B4%D1%96%D0%BB%D1%8C%D0%BD%D0%BE%D1%8E_%D0%B7%D0%B4%D0%B0%D1%82%D0%BD%D1%96%D1%81%D1%82%D1%8E" title="Телебачення зі стандартною роздільною здатністю - ucraino" lang="uk" hreflang="uk" data-title="Телебачення зі стандартною роздільною здатністю" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Standart_aniqlikdagi_televideniye" title="Standart aniqlikdagi televideniye - uzbeco" lang="uz" hreflang="uz" data-title="Standart aniqlikdagi televideniye" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeco" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/SDTV" title="SDTV - veneto" lang="vec" hreflang="vec" data-title="SDTV" data-language-autonym="Vèneto" data-language-local-name="veneto" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Truy%E1%BB%81n_h%C3%ACnh_%C4%91%E1%BB%99_n%C3%A9t_chu%E1%BA%A9n" title="Truyền hình độ nét chuẩn - vietnamita" lang="vi" hreflang="vi" data-title="Truyền hình độ nét chuẩn" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%A8%99%E6%BA%96%E7%95%AB%E8%B3%AA%E9%9B%BB%E8%A6%96" title="標準畫質電視 - cinese" lang="zh" hreflang="zh" data-title="標準畫質電視" data-language-autonym="中文" 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data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aspetto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">nascondi</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(Reindirizzamento da <strong><a href="/w/index.php?title=Televisione_a_definizione_standard&redirect=no" class="mw-redirect" title="Televisione a definizione standard">Televisione a definizione standard</a></strong>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><p>La <b>televisione a definizione standard</b> o <b>televisione a definizione convenzionale</b> (in sigla <b>SDTV</b>, <a href="/wiki/Acronimo" title="Acronimo">acronimo</a> dell'analogo termine in <a href="/wiki/Lingua_inglese" title="Lingua inglese">lingua inglese</a> <i>Standard Definition TeleVision</i>) è un livello qualitativo dell'immagine <a href="/wiki/Televisione" title="Televisione">televisiva</a> simile a quello degli <a href="/wiki/Standard_televisivi#Standard_televisivi_per_la_televisione_analogica" class="mw-redirect" title="Standard televisivi">standard televisivi analogici</a> generalmente diffusi in tutto il mondo nella seconda metà del <a href="/wiki/XX_secolo" title="XX secolo">XX secolo</a>, oggi in Italia ancora la più utilizzata, ma in via di sostituzione da parte dell'HDTV. </p> <figure typeof="mw:File/Thumb"><a href="/wiki/File:TV-line-count-world.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/50/TV-line-count-world.svg/500px-TV-line-count-world.svg.png" decoding="async" width="500" height="254" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/50/TV-line-count-world.svg/750px-TV-line-count-world.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/50/TV-line-count-world.svg/1000px-TV-line-count-world.svg.png 2x" data-file-width="940" data-file-height="477" /></a><figcaption>I sistemi analogici SDTV più impiegati nel mondo: <a href="/wiki/PAL_(televisione)" title="PAL (televisione)">PAL</a>, <a href="/wiki/S%C3%89CAM" title="SÉCAM">SÉCAM</a> e <a href="/wiki/NTSC" title="NTSC">NTSC</a></figcaption></figure> <div class="mw-heading mw-heading2"><h2 id="I_formati_video_e_gli_standard_televisivi_nello_specifico">I formati video e gli standard televisivi nello specifico</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SDTV&veaction=edit&section=1" title="Modifica la sezione I formati video e gli standard televisivi nello specifico" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=SDTV&action=edit&section=1" title="Edit section's source code: I formati video e gli standard televisivi nello specifico"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Le caratteristiche del video negli standard televisivi analogici maggiormente diffusi al mondo sono 576 o 480 linee di risoluzione verticale delle immagini e frequenza rispettivamente di 25 o 30 <a href="/wiki/Frame_per_secondo" class="mw-redirect" title="Frame per secondo">immagini al secondo</a> con <a href="/wiki/Scansione_interlacciata" title="Scansione interlacciata">scansione interlacciata</a>. Questi formati video vengono indicati con le notazioni <a href="/wiki/576i" title="576i">576i50</a> (esistono anche altri tipi di notazione: 576i/50 oppure 576/50i) e <a href="/wiki/480i" title="480i">480i60</a>, dove la lettera "i" sta per scansione <a href="/wiki/Interlacciamento" class="mw-redirect" title="Interlacciamento">interlacciata</a> e i numeri 50 e 60 rappresentano i semiquadri al secondo, che sono il doppio delle immagini al secondo nella scansione interlacciata. </p><p>Oltre a questi formati video rientrano nella SDTV anche altri tipi di formati come ad esempio quelli a 576 o 480 <a href="/wiki/Pixel" title="Pixel">pixel</a> (in ambito digitale si parla di pixel invece che di linee, termine usato solo in ambito analogico) di risoluzione verticale delle immagini e frequenza rispettivamente di 25 o 30 <a href="/wiki/Frame_per_secondo" class="mw-redirect" title="Frame per secondo">immagini al secondo</a> con scansione progressiva (<a href="/wiki/576p" title="576p">576p25</a> e <a href="/wiki/480p" class="mw-redirect" title="480p">480p30</a>, dove la lettera "p" sta per scansione progressiva) previsti negli standard di <a href="/wiki/Televisione_digitale" title="Televisione digitale">televisione digitale</a>. </p><p>La televisione di livello qualitativo superiore alla SDTV è la <a href="/wiki/Televisione_a_definizione_avanzata" title="Televisione a definizione avanzata">televisione a definizione avanzata</a> (EDTV) che nella pratica corrispondeva a formati video con 576 o 480 linee (o pixel in caso di formato digitale) di risoluzione verticale delle immagini e frequenza rispettivamente di 50 o 60 immagini al secondo con scansione progressiva (576p50 e 480p60). </p><p>Ad un livello qualitativo ancora superiore alla televisione a definizione avanzata c'è la <a href="/wiki/HDTV" title="HDTV">televisione ad alta definizione (HDTV)</a> con formati video a 720, 1035, 1080, 1125 o 1250 linee (o pixel) di risoluzione verticale delle immagini. </p> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SDTV&veaction=edit&section=2" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=SDTV&action=edit&section=2" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Televisione_a_bassa_definizione" title="Televisione a bassa definizione">Televisione a bassa definizione</a> (LDTV)</li> <li><a href="/wiki/Televisione_a_definizione_avanzata" title="Televisione a definizione avanzata">Televisione a definizione avanzata</a> (EDTV)</li> <li><a href="/wiki/Televisione_ad_alta_definizione" class="mw-redirect" title="Televisione ad alta definizione">Televisione ad alta definizione</a> (HDTV)</li> <li><a href="/wiki/Risoluzioni_standard" class="mw-redirect" title="Risoluzioni standard">Risoluzioni standard</a></li> <li><a href="/wiki/PAL_(televisione)" title="PAL (televisione)">PAL (televisione)</a></li> <li><a href="/wiki/NTSC" title="NTSC">NTSC</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SDTV&veaction=edit&section=3" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=SDTV&action=edit&section=3" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li class="mw-empty-elt"></li> <li><cite id="CITEREFBritannica.com" class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.britannica.com/technology/standard-definition-television"><span style="font-style:italic;">standard-definition television</span></a>, su <span style="font-style:italic;"><a href="/wiki/Enciclopedia_Britannica" title="Enciclopedia Britannica">Enciclopedia Britannica</a></span>, Encyclopædia Britannica, Inc.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q243314#P1417" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li></ul> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-grow: 1"><style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}</style><div class="itwiki-template-occhiello"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:TV-icon-2.svg" class="mw-file-description" title="Televisione"><img alt=" " src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b6/TV-icon-2.svg/25px-TV-icon-2.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b6/TV-icon-2.svg/38px-TV-icon-2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b6/TV-icon-2.svg/50px-TV-icon-2.svg.png 2x" data-file-width="138" data-file-height="96" /></a></span> <b><a href="/wiki/Portale:Televisione" title="Portale:Televisione">Portale Televisione</a></b>: accedi alle voci di Wikipedia che trattano di televisione</div></div></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; 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