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2. High-definition television in the United States - Wikipedia

   en.wikipedia.org/wiki/High-definition_television...

   High-definition television (HDTV) in the United States was introduced in 1998 and has since become increasingly popular and dominant in the television market. Hundreds of HD channels are available in millions of homes and businesses both terrestrially and via subscription services such as satellite , cable and IPTV .

3. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   Indoor antennas are designed to be located on top of or next to the television set, but are ideally placed near a window in a room and as high up as possible for the best reception. [1] The most common types of indoor antennas are the dipole [2] ("rabbit ears"), which work best for VHF channels, and loop antennas, which work best for UHF. [3]

4. Coverage map - Wikipedia

   en.wikipedia.org/wiki/Coverage_map

   A coverage map may be produced to indicate the area in which a certain signal strength is delivered. [1] Even if it is 100% accurate (which it never is), a major factor on whether a signal is receivable depends very much on whether the receiving apparatus is sensitive enough to use a signal of that level.

5. Digital television - Wikipedia

   en.wikipedia.org/wiki/Digital_television

   One of several different HDTV formats that can be transmitted over DTV is: 1280 × 720 pixels in progressive scan mode (abbreviated 720p) or 1920 × 1080 pixels in interlaced video mode . Each of these uses a 16:9 aspect ratio. HDTV cannot be transmitted over analog television channels because of channel capacity issues.

6. High-definition television - Wikipedia

   en.wikipedia.org/wiki/High-definition_television

   Non-cinematic HDTV video recordings intended for broadcast are typically recorded either in 720p or 1080i format as determined by the broadcaster. 720p is commonly used for Internet distribution of high-definition video, because most computer monitors operate in progressive-scan mode. 720p also imposes less strenuous storage and decoding ...

7. Colorado Parents Praise 8-Year-Old Son with Down Syndrome for ...

   www.aol.com/colorado-parents-praise-8-old...

   An 8-year-old boy with Down syndrome became a hero after he alerted his 14-year-old sister of a fire in their Colorado home, helping them get out on time before it was engulfed in flames.