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  2. TV Parental Guidelines - Wikipedia

    en.wikipedia.org/wiki/TV_Parental_Guidelines

    TV Parental Guidelines. The TV Parental Guidelines are a television content rating system in the United States that was first proposed on December 19, 1996, by the United States Congress, the American television industry, and the Federal Communications Commission (FCC). The guidelines went into effect by January 1, 1997, on most major broadcast ...

  3. Television content rating system - Wikipedia

    en.wikipedia.org/wiki/Television_content_rating...

    Television content rating systems are systems for evaluating the content and reporting the suitability of television programmes for minors. Many countries have their own television rating system and countries' rating processes vary by local priorities. Programmes are rated by the organization that manages the system, the broadcaster, or the ...

  4. SMPTE color bars - Wikipedia

    en.wikipedia.org/wiki/SMPTE_color_bars

    SMPTE ECR 1-1978 (SDTV) In a SMPTE color bar image, the top two-thirds of the television picture contain seven vertical bars of 75% intensity. In order from left to right, the colors are white or gray, yellow, cyan, green, magenta, red, and blue. [18] The choice of white or gray depends on whether that bar's luminance is 100% or not.

  5. List of television shows notable for negative reception

    en.wikipedia.org/wiki/List_of_television_shows...

    The series, the subject of Brett Forrest's book Long Bomb: How the XFL Became TV's Biggest Fiasco, ranked No. 3 on the 2002 TV Guide list of worst TV series of all time, #2 on ESPN's list of biggest sports flops, #21 on TV Guide's 2010 list of the biggest television blunders of all time, and #10 on Entertainment Weekly's list of the biggest ...

  6. LED lamp - Wikipedia

    en.wikipedia.org/wiki/LED_lamp

    A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

  7. Test card - Wikipedia

    en.wikipedia.org/wiki/Test_card

    Test card. SMPTE color bars: common NTSC test pattern. PM5544: common PAL test pattern. EBU colour bars (4:3) A test card, also known as a test pattern or start-up/closedown test, is a television test signal, typically broadcast at times when the transmitter is active but no program is being broadcast (often at sign-on and sign-off). [1]