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2. Magnitude (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Magnitude_(astronomy)

   Consequently, a magnitude 1 star is about 2.5 times brighter than a magnitude 2 star, about 2.5 2 times brighter than a magnitude 3 star, about 2.5 3 times brighter than a magnitude 4 star, and so on. This is the modern magnitude system, which measures the brightness, not the apparent size, of stars.

3. YouTube TV channels and networks, cost, devices and more - AOL

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4. List of United States pay television channels - Wikipedia

   en.wikipedia.org/wiki/List_of_United_States_pay...

   The following is a list of pay television networks or channels broadcasting or receivable in the United States, organized by broadcast area and genre. Some television providers use one or more channel slots for east/west feeds, high definition services, secondary audio programming and access to video on demand .

5. Apparent magnitude - Wikipedia

   en.wikipedia.org/wiki/Apparent_magnitude

   minimum brightness [42] −1.47: star system Sirius: seen from Earth Brightest star except for the Sun at visible wavelengths [45] −0.83: star Eta Carinae: seen from Earth apparent brightness as a supernova impostor in April 1843 −0.72: star Canopus: seen from Earth 2nd brightest star in night sky [46] −0.55: planet Saturn: seen from Earth

6. Multichannel television in the United States - Wikipedia

   en.wikipedia.org/wiki/Multichannel_television_in...

   Multichannel television in the United States has been available since at least 1948. The United States is served by multichannel television through cable television systems, direct-broadcast satellite providers, and various other wireline video providers; among the largest television providers in the U.S. are YouTube TV, DirecTV, Altice USA, Charter Communications (through its Spectrum ...

7. QAM (television) - Wikipedia

   en.wikipedia.org/wiki/QAM_(television)

   QAM is used in a variety of communications systems such as Dial-up modems and WiFi. In cable systems, a QAM tuner is linked to the cable in a manner that is equivalent to an ATSC tuner which is required to receive over-the-air (OTA) digital channels broadcast by local television stations when attached to an antenna. Most new HDTV digital ...

8. Category:Internet television channels - Wikipedia

   en.wikipedia.org/wiki/Category:Internet...

   Within the context of internet television, a channel might be 1) a broadcast or cable TV station/network (e.g. CBS or CNN) which posts videos or live streams to its website or a video hosting website, 2) a user or group who live stream or upload videos to a video hosting website such as YouTube or Twitch (e.g.

9. High-dynamic-range television - Wikipedia

   en.wikipedia.org/wiki/High-dynamic-range_television

   The highlights—the brightest parts of an image—can be brighter, more colorful, and more detailed. [2] The larger capacity for brightness can be used to increase the brightness of small areas without increasing the overall image's brightness, resulting in, for example, bright reflections from shiny objects, bright stars in a dark night scene, and bright and colorful light-emissive objects ...