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  2. Analog television - Wikipedia

    en.wikipedia.org/wiki/Analog_television

    Analog television is the original television technology that uses analog signals to transmit video and audio. [1] In an analog television broadcast, the brightness, colors and sound are represented by amplitude , phase and frequency of an analog signal.

  3. Short-term Analog Flash and Emergency Readiness Act

    en.wikipedia.org/wiki/Short-term_Analog_Flash...

    The Short-term Analog Flash and Emergency Readiness Act, or SAFER Act, (S. 3663, Pub. L. 110–459 (text)) is a U.S. law that required the Federal Communications Commission (FCC) to allow the continuation of full-power analog TV transmissions in 2009 for an additional 30 days for the purpose of broadcasting public service announcements ...

  4. Digital television transition in the United States - Wikipedia

    en.wikipedia.org/wiki/Digital_television...

    12 June 2009 - final hours of analog broadcast on WWL-TV gave information about websites and telephone numbers for more information about transition.. The digital television transition in the United States was the switchover from analog to exclusively digital broadcasting of terrestrial television programming.

  5. Top 25 things vanishing from America: #2 -- Analog TV - AOL

    www.aol.com/2008/07/20/top-25-things-vanishing...

    This series explores aspects of America that may soon be just a memory -- some to be missed, some gladly left behind. From the least impactful to the most, here are 25 bits of vanishing America. I ...

  6. Digital television transition - Wikipedia

    en.wikipedia.org/wiki/Digital_television_transition

    ZFB-TV (analog channel 7) and ZBM-TV (analog channel 9), the two television stations in Bermuda, switched to digital channels 20.1 and 20.2, respectively. [122] Like its parent nation (the United Kingdom) and unlike the United States, Canada, and the Bahamas (which have been transitioning to ATSC), Bermuda switched over to DVB-T.

  7. Broadcast television systems - Wikipedia

    en.wikipedia.org/wiki/Broadcast_television_systems

    Analog television systems were standardized by the International Telecommunication Union (ITU) in 1961, [1] with each system designated by a letter (A-N) in combination with the color standard used (NTSC, PAL or SECAM) - for example PAL-B, NTSC-M, etc.). These analog systems for TV broadcasting dominated until the 2000s.

  8. Digital television in the United States - Wikipedia

    en.wikipedia.org/wiki/Digital_television_in_the...

    [5] [failed verification] As of the analog shut-off date of June 12, 2009, all full power OTA stations in the U.S. by law either transmitted their broadcasts digitally, or shut down. Many stations used the switch to digital transmission as an opportunity to transition from 480i broadcasts to digital HD OTA broadcasts (either in 720p or 1080i ...

  9. 525 lines - Wikipedia

    en.wikipedia.org/wiki/525_lines

    525-line (or EIA 525/60) is an American standard-definition television resolution used since July 1, 1941, [1] [2] [3] mainly in the context of analog TV broadcast systems. It consists of a 525-line raster , with 486 lines carrying the visible image at 30 (29.97 with color) interlaced frames per second.