Changes

Television

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Over the Air
Over the air (OTA) reception requires an antenna or satellite dish and a tuner in the TV or a separate component. A separate component will give the most flexibility. Historically for analogue broadcasts each country used one of three different broadcast standards: [https://en.wikipedia.org/wiki/NTSC NTSC] in North, Central and Andean South America; [https://en.wikipedia.org/wiki/SECAM SECAM] in France, the former USSR and Central West Africa; and [https://en.wikipedia.org/wiki/PAL PAL] in Europe and most of the rest of the world.
However, the world is moving to Digital television (DTV) and proliferating an even larger number of standards.<ref>https://en.wikipedia.org/wiki/Digital_television</ref> Most DTV OTA direct transmissions are low power and only useful at maximum distances of ~30 miles. The world is moving to streaming video via Internet and less and less by cable. Marine applications typically use satelliteto subscribe to cable packages.
The DTV OTA standard in North America is [https://en.wikipedia.org/wiki/ATSC_standards ATSC].