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If notability cannot be shown, the article is likely to be <a href="/wiki/Wikipedia:Merging" title="Wikipedia:Merging">merged</a>, <a href="/wiki/Wikipedia:Redirect" title="Wikipedia:Redirect">redirected</a>, or <a href="/wiki/Wikipedia:Deletion_policy" title="Wikipedia:Deletion policy">deleted</a>.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Analog+passthrough%22">"Analog passthrough"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Analog+passthrough%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Analog+passthrough%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Analog+passthrough%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Analog+passthrough%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Analog+passthrough%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">September 2022</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> </div> </div><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p><b>Analog passthrough</b> is a feature found on some <a href="/wiki/Digital_television_adapter" title="Digital television adapter">digital-to-analog television converter boxes</a>. Boxes without the analog passthrough feature only allow older, analog-only TVs to view digital TV. Those with analog pass-through allow both digital and analog television to be viewed on older TVs. </p><p>Before digital television, passthrough originally existed in <a href="/wiki/VCR" class="mw-redirect" title="VCR">VCRs</a> (and later <a href="/wiki/Personal_video_recorder" class="mw-redirect" title="Personal video recorder">PVRs</a> and <a href="/wiki/DVDR" class="mw-redirect" title="DVDR">DVDRs</a>) that connected to a TV set using <a href="/wiki/RF_connector" title="RF connector">RF connector</a>, allowing the <a href="/wiki/TV_antenna" class="mw-redirect" title="TV antenna">TV antenna</a> or <a href="/wiki/Cable_TV" class="mw-redirect" title="Cable TV">cable TV</a> signal to be switched to pass through the VCR, or have VCR output added as an extra channel. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="The_problem">The problem</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Analog_passthrough&action=edit&section=1" title="Edit section: The problem"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>All digital-to-analog converter boxes have both an antenna input (which accepts the <a href="/wiki/Coaxial_cable" title="Coaxial cable">coaxial cable</a> that formerly went directly to the TV) and an <a href="/wiki/Radio_frequency" title="Radio frequency">RF</a> output (which now goes directly to the TV). They may also have additional outputs. Any converter box converts the digital signal for the current digital sub-channel to an analog signal (at the reduced screen resolution of the analog standard), outputs that signal onto analog channel 3 or 4 (set by the user to avoid any conflict with local over-the-air channels) and sends that signal to the analog tuner on the TV. With a box that lacks analog passthrough, no other signals are sent to the output, so all analog stations are lost. </p><p>In the US, this primarily affects low-power and <a href="/wiki/Broadcast_translator" class="mw-redirect" title="Broadcast translator">broadcast translator</a> stations, as these are exempt from the <a href="/wiki/DTV_transition_in_the_United_States" class="mw-redirect" title="DTV transition in the United States">FCC mandate</a> to <a href="/wiki/Digital_television_transition" title="Digital television transition">switch</a> to <a href="/wiki/Digital_television" title="Digital television">digital broadcasting</a> in 2009, as well as foreign signals that will remain in analog form. A small number of TV receivers were also manufactured with built-in <a href="/wiki/Broadcast_radio" class="mw-redirect" title="Broadcast radio">broadcast radio</a> receivers; these included some small portable devices or (more rarely) sets marketed for hotel/motel use. If used with DTV converter boxes, these will need analog passthrough in order not to block incoming <a href="/wiki/FM_radio" class="mw-redirect" title="FM radio">FM radio</a> signals.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="The_solution">The solution</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Analog_passthrough&action=edit&section=2" title="Edit section: The solution"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Some <a href="/wiki/Coupon-eligible_converter_box" title="Coupon-eligible converter box">converter boxes</a> offer analog pass-through, meaning that the same output <a href="/wiki/Coaxial_cable" title="Coaxial cable">cable</a> which carries the converted <a href="/wiki/Digital_television" title="Digital television">digital</a> signal (on analog channel 3 or 4) while the converter is operating also retains all remaining <a href="/wiki/Analog_television" title="Analog television">analog signals</a> upon turning the converter box off. </p><p>While this typically works to some extent with the converter box on, there is often significant signal strength reduction and/or interference on the original analog channels. </p><p>Analog pass-through signals are passed only to the <a href="/wiki/Radio_frequency" title="Radio frequency">coax output</a>, not to any other outputs provided by the unit. While other converter outputs may still be connected and used for digital TV reception, the coaxial RF output must remain connected to pass analog TV signals. </p><p>Some VCRs and TVs have receivers that detect active composite video or S-video connections. When they detect these connections, they are designed to accept signals only from those sources, which can cause issues with the described arrangement. In such a case, the two options would be to use the coax output exclusively, either when viewing analog TV only (which requires plugging and unplugging cables) or full-time (with the reduced digital TV quality produced using the coax output). </p><p>The majority of TVs have a button on the unit and/or remote labeled something like "TV/VIDEO", "INPUT" or "AUX", which manually switches between coax and other sources. This eliminates problems when using both sets of connections simultaneously. </p> <div class="mw-heading mw-heading2"><h2 id="United_States_implementation">United States implementation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Analog_passthrough&action=edit&section=3" title="Edit section: United States implementation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Digital_television_transition#ITU_region_2_(Americas)" title="Digital television transition">Digital television transition § ITU region 2 (Americas)</a></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-Importance_section plainlinks metadata ambox ambox-content" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section may contain information <b>not <a href="/wiki/Wikipedia:What_Wikipedia_is_not#Encyclopedic_content" title="Wikipedia:What Wikipedia is not">important or relevant</a> to the article's subject.</b><span class="hide-when-compact"> Please help <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Analog_passthrough&action=edit">improve this section</a>.</span> <span class="date-container"><i>(<span class="date">September 2022</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>In the US, conversion to digital TV from analog was complete by June 12, 2009. </p><p>Unfortunately, only one of the initially available converter boxes included this feature,<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2009)">citation needed</span></a></i>]</sup> and a year before the original transition date of February 17, 2009, <a href="/wiki/Community_Broadcasters_Association" title="Community Broadcasters Association">Community Broadcasters Association</a> president Ron Bruno said four of the 32 NTIA-certified boxes had the feature.<sup id="cite_ref-ready_2-0" class="reference"><a href="#cite_note-ready-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> In late March 2008, the CBA filed a <a href="/wiki/Lawsuit" title="Lawsuit">lawsuit</a> in the <a href="/wiki/U.S._Court_of_Appeals_for_the_District_of_Columbia" class="mw-redirect" title="U.S. Court of Appeals for the District of Columbia">U.S. Court of Appeals for the District of Columbia</a>, seeking an <a href="/wiki/Injunction" title="Injunction">injunction</a> to halt the sale and distribution of DTV <a href="/wiki/Set-top_box" title="Set-top box">converter boxes</a>,<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> charging that their failure to include analog tuners or analog passthrough violates the <a href="/wiki/All-Channel_Receiver_Act" title="All-Channel Receiver Act">All-Channel Receiver Act</a>.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> CBA maintained that the lack of analog support would seriously harm the <a href="/wiki/LPTV" class="mw-redirect" title="LPTV">LPTV</a> and <a href="/wiki/Class_A_television" class="mw-redirect" title="Class A television">class A television</a> stations the group represents, as it is cost-prohibitive for many or most of them to convert to digital transmissions,<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> and the new boxes would prevent viewers from being able to watch (or even being aware of the existence of) their analog-only stations.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>Responding to CBA's actions, the <a href="/wiki/Federal_Communications_Commission" title="Federal Communications Commission">FCC</a> and NTIA urged manufacturers to include the feature voluntarily in all converter boxes, and manufacturers responded by releasing a new generation of models with the feature. Some new <a href="/wiki/DVD_recorder" title="DVD recorder">DVD recorders</a> and <a href="/wiki/Personal_video_recorder" class="mw-redirect" title="Personal video recorder">personal video recorders</a> also provide both analog and digital tuners, and could therefore perform the basic functions of a set-top box in both modes. </p><p>In early May 2008, the D.C. district court denied the CBA petition without comment.[8] The court's decision implied that the association had not exhausted all its efforts. Furthermore, the court believed there wasn't enough merit to bring the case forward. The CBA responded by concentrating its lobbying efforts on the FCC and by urging more funding for low-power and Class A broadcasters to transition to digital, asking Congress to increase the number of such stations eligible for funds. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Analog_passthrough&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/All-Channel_Receiver_Act" title="All-Channel Receiver Act">All-Channel Receiver Act</a></li> <li><a href="/wiki/Composite_video" title="Composite video">Composite video</a> and <a href="/wiki/S-video" class="mw-redirect" title="S-video">S-video</a></li> <li><a href="/wiki/Set-top_box" title="Set-top box">Set-top box</a> and <a href="/wiki/Coupon-eligible_converter_box" title="Coupon-eligible converter box">coupon-eligible converter box</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Analog_passthrough&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20080424195927/http://www.dtv.gov/consumercorner.html#faq33">"DTV.gov FAQ"</a>. 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aria-labelledby="Digital_television_in_North_America" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:North_American_DTV" title="Template:North American DTV"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:North_American_DTV" title="Template talk:North American DTV"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:North_American_DTV" title="Special:EditPage/Template:North American DTV"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Digital_television_in_North_America" style="font-size:114%;margin:0 4em"><a href="/wiki/Digital_television" title="Digital television">Digital television</a> in North America</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Digital_terrestrial_television" title="Digital terrestrial television">Terrestrial</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:11em"><a href="/wiki/Digital_broadcasting" title="Digital broadcasting">Digital broadcasting</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ATSC_tuner" title="ATSC tuner">ATSC tuners</a></li> <li><a href="/wiki/Digital_subchannel" title="Digital subchannel">Digital subchannels</a></li> <li><a href="/wiki/Virtual_channel" title="Virtual channel">Virtual channels</a></li> <li><a href="/wiki/Distributed_transmission_system" title="Distributed transmission system">Distributed transmission system</a></li> <li><a href="/wiki/Datacasting" title="Datacasting">Datacasting</a> <ul><li><a href="/wiki/Guide_Plus" title="Guide Plus">Guide Plus</a></li> <li><a href="/wiki/National_Datacast" title="National Datacast">National Datacast</a></li> <li><a href="/wiki/UpdateLogic" class="mw-redirect" title="UpdateLogic">UpdateLogic</a></li></ul></li> <li><a href="/wiki/Metropolitan_Television_Alliance" title="Metropolitan Television Alliance">Metropolitan Television Alliance</a></li> <li><a href="/wiki/Grand_Alliance_(HDTV)" title="Grand Alliance (HDTV)">Grand Alliance</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em"><a href="/wiki/Digital_television_transition" title="Digital television transition">Digital switchover</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/All-Channel_Receiver_Act" title="All-Channel Receiver Act">All-Channel Receiver Act</a></li> <li><a href="/wiki/Short-term_Analog_Flash_and_Emergency_Readiness_Act" title="Short-term Analog Flash and Emergency Readiness Act">SAFER Act</a></li> <li><a href="/wiki/Digital_channel_election" title="Digital channel election">Digital channel election</a></li> <li><a href="/wiki/Set-top_box" title="Set-top box">Set-top boxes</a></li> <li><a href="/wiki/Digital_television_adapter" title="Digital television adapter">Digital television adapter</a></li> <li><a href="/wiki/Coupon-eligible_converter_box" title="Coupon-eligible converter box">U.S. Converter Box Coupon Program</a> <ul><li><a href="/wiki/Digital_Transition_and_Public_Safety_Act_of_2005" title="Digital Transition and Public Safety Act of 2005">legislation</a></li></ul></li> <li><a class="mw-selflink selflink">Analog passthrough</a></li> <li><a href="/wiki/DVD_recorder" title="DVD recorder">DVD recorders</a></li> <li><a href="/wiki/Digital_video_recorder" title="Digital video recorder">Digital video recorders</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Digital standards</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ATSC_standards" title="ATSC standards">ATSC standards</a> <ul><li><a href="/wiki/Advanced_Television_Systems_Committee" title="Advanced Television Systems Committee">ATSC</a></li> <li><a href="/wiki/ATSC-M/H" title="ATSC-M/H">ATSC-M/H</a></li> <li><a href="/wiki/8VSB" title="8VSB">8VSB</a></li> <li><a href="/wiki/A-VSB" title="A-VSB">A-VSB</a></li> <li><a href="/wiki/E-VSB" title="E-VSB">E-VSB</a></li> <li><a href="/wiki/Program_and_System_Information_Protocol" title="Program and System Information Protocol">PSIP</a></li> <li><a href="/wiki/Programming_Metadata_Communication_Protocol" class="mw-redirect" title="Programming Metadata Communication Protocol">PMCP</a></li> <li><a href="/wiki/List_of_ATSC_standards" title="List of ATSC standards">full list</a></li></ul></li> <li><a href="/wiki/Standard-definition_television" title="Standard-definition television">Standard-definition TV</a> <ul><li><a href="/wiki/480i" title="480i">480i</a></li> <li><a href="/wiki/576i" title="576i">576i</a></li></ul></li> <li><a href="/wiki/Enhanced-definition_television" title="Enhanced-definition television">Enhanced-definition TV</a> <ul><li><a href="/wiki/480p" title="480p">480p</a></li> <li><a href="/wiki/576p" title="576p">576p</a></li></ul></li> <li><a href="/wiki/High-definition_television" title="High-definition television">High-definition TV</a> <ul><li><a href="/wiki/720p" title="720p">720p</a></li> <li><a href="/wiki/1080i" title="1080i">1080i</a></li> <li><a href="/wiki/1080p" title="1080p">1080p</a></li></ul></li> <li><a href="/wiki/Ultra-high-definition_television" title="Ultra-high-definition television">Ultra high-definition TV</a> <ul><li><a href="/wiki/2160p" class="mw-redirect" title="2160p">2160p</a></li></ul></li> <li><a href="/wiki/Serial_digital_interface" title="Serial digital interface">Serial digital interface</a></li> <li><a href="/wiki/Smart_antenna" title="Smart antenna">Smart antennas</a> <ul><li><a href="/wiki/CEA-909" title="CEA-909">CEA-909</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">Digital networks</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_multicast_television_network" title="Digital multicast television network">Digital multicast television network</a></li> <li>see <a href="/wiki/Template:American_broadcast_television" title="Template:American broadcast television">Template:American broadcast television</a></li> <li><a href="/wiki/Template:Canadian_television_networks" title="Template:Canadian television networks">Template:Canadian television networks</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em">National deployment</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_digital_television_deployments_by_country" title="List of digital television deployments by country">List by country</a></li> <li><a href="/wiki/Digital_television_in_Canada" title="Digital television in Canada">Canada</a></li> <li><a href="/wiki/Television_in_Mexico" title="Television in Mexico">Mexico</a></li> <li><a href="/wiki/Digital_television_in_the_United_States" title="Digital television in the United States">United States</a> <ul><li><a href="/wiki/High-definition_television_in_the_United_States" title="High-definition television in the United States">HDTV</a></li> <li><a href="/wiki/Digital_television_transition_in_the_United_States" title="Digital television transition in the United States">transition</a></li> <li><a href="/wiki/2008_United_States_wireless_spectrum_auction" title="2008 United States wireless spectrum auction">wireless spectrum auction</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Cable_television" title="Cable television">Cable</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:11em"><a href="/wiki/Digital_cable" title="Digital cable">Digital cable</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cable-ready#Digital_cable" title="Cable-ready">Digital-cable-ready TV</a> <ul><li><a href="/wiki/QAM_(television)" title="QAM (television)">QAM tuners</a></li></ul></li> <li><a href="/wiki/Cable-ready#Digital_cable" title="Cable-ready">Interactive-digital-cable-ready TV</a> <ul><li><a href="/wiki/OpenCable_Application_Platform" title="OpenCable Application Platform">OpenCable Application Platform</a></li></ul></li> <li><a href="/wiki/Television_encryption#Digital_cable_and_satellite_television_encryption" title="Television encryption">Encryption</a></li> <li><a href="/wiki/Must-carry#Digital_must-carry" title="Must-carry">Must-carry</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:11em"><a href="/wiki/Pay_television" title="Pay television">Subscription TV</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AllVid" title="AllVid">AllVid</a></li> <li><a href="/wiki/CableCARD" title="CableCARD">CableCARD</a></li> <li><a href="/wiki/Downloadable_Conditional_Access_System" title="Downloadable Conditional Access System">Downloadable Conditional Access System</a></li> <li><a href="/wiki/Tru2way" title="Tru2way">Tru2way</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Satellite_television" title="Satellite television">Satellite TV</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DVB-S" title="DVB-S">DVB-S</a> <ul><li><a href="/wiki/Dish_Network" title="Dish Network">Dish Network</a></li> <li><a href="/wiki/GlobeCast_World_TV" title="GlobeCast World TV">GlobeCast World TV</a></li> <li><a href="/wiki/Free-to-air" title="Free-to-air">Free-to-air</a> <a href="/wiki/FTA_receiver" title="FTA receiver">receiver</a></li> <li><a href="/wiki/Bell_Satellite_TV" title="Bell Satellite TV">Bell Satellite TV</a>/<a href="/wiki/Telus_TV" class="mw-redirect" title="Telus TV">Telus Satellite TV</a></li> <li><a href="/wiki/Dish_M%C3%A9xico" title="Dish México">Dish México</a></li></ul></li> <li><a href="/wiki/DigiCipher_2" title="DigiCipher 2">DigiCipher 2</a> <ul><li><a href="/wiki/4DTV" title="4DTV">4DTV</a></li> <li><a href="/wiki/Shaw_Direct" title="Shaw Direct">Shaw Direct</a></li> <li><a href="/wiki/Claro_Puerto_Rico" title="Claro Puerto Rico">Claro Puerto Rico</a></li></ul></li> <li><a href="/wiki/Digital_Satellite_Service" title="Digital Satellite Service">Digital Satellite Service</a>/<a href="/wiki/DVB-S2" title="DVB-S2">DVB-S2</a> <ul><li><a href="/wiki/DirecTV" title="DirecTV">DirecTV</a></li> <li><a href="/wiki/Vrio_Corp." title="Vrio Corp.">Vrio</a>/<a href="/wiki/Sky_Brazil" class="mw-redirect" title="Sky Brazil">Sky Brazil</a></li> <li><a href="/wiki/Sky_Mexico" class="mw-redirect" title="Sky Mexico">Sky Mexico</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Internet_Protocol_television" title="Internet Protocol television">IPTV</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/U-verse_TV" title="U-verse TV">U-verse TV</a></li> <li><a href="/wiki/Bell_Fibe_TV" title="Bell Fibe TV">Bell Fibe TV</a></li> <li><a href="/wiki/Fibe_(Bell_Aliant)" title="Fibe (Bell Aliant)">FibreOP</a></li> <li><a href="/wiki/Telus_TV" class="mw-redirect" title="Telus TV">Telus Optik TV</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Technical issues</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a 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