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Learn about the history and standards of terrestrial television signals, from analog to digital, and the color encoding systems used worldwide. Compare the features and characteristics of different broadcast television systems by nation and region.
Learn about the origins, development and operation of cable television, a system of delivering TV programming via coaxial or fibre-optic cables. Find out how cable TV contrasts with broadcast and satellite TV, and how it evolved from analog to digital signals.
Learn about the process of converting analogue television broadcasting to digital, which started in some countries around 2000 and was completed in the US in 2009. See the timeline of switchover dates and the world map of digital television progress.
Learn about the technology, standards, and reception of digital terrestrial television (DTT), also known as digital terrestrial television broadcasting (DTTB). Compare different countries' DTT systems and see the list of digital television deployments by country.
Digital media is any communication media that operates with encoded machine-readable data formats. Learn about the types, impact, and history of digital media, from binary code to digital computers, from print to online platforms.
Learn about the evolution and development of digital television technology, from its origins in the 1980s to the current global standards and formats. Compare and contrast different digital TV systems, such as DVB, ATSC, ISDB, DTMB and DMB.
Learn about the origins, development and characteristics of analog television, the original technology that uses analog signals to transmit video and audio. Compare different analog broadcast systems, such as NTSC, PAL and SECAM, and how they encode color and sound information.
These are Dish TV (a ZEE TV subsidiary), Tata Sky, Sun Network owned 'Sundirect DTH', Reliance owned BIG TV, Bharti Airtel's DTH Service 'Airtel Digital TV' and the public sector DD Direct Plus. As of 2010, India has the most competitive Direct-broadcast satellite market with seven operators vying for more than 110 million TV homes.