Terrestrial television or also known as broadcast television is a type of television broadcasting in which the television signal is transmitted by radio waves from the terrestrial (Earth based) transmitter of a television station to a TV receiver having an antenna.
Digital terrestrial television is a technological evolution of broadcast television and an advancement over analog television. DTTV broadcasts land-based terrestrial signals.
In 1990 the digital television first came out , digital TV is a more current television system created and still being expanded in many different ways. The technology first came into play in 1990 when it was declared by the Commission that ATV must be a greater change, rather than just enhanced analog signals. This allowed the possibility of a better resolution of existing television and also increase the spectrum of television. For viewers that did not wish to buy a new digital television, they had to allow space for older technology alongside the fast and evolving industry of digital TV. This was the initial change that took place and was an exciting change for the audiences as it simply allowed an enhancement of the existing television contents they were used to. Digital television is far more advanced and better quality than Terrestrial, therefore digital television has faded out most terrestrial television across the world, apart from some developing countries. Digital television was a innovation in 2006, which represents one of the most signification evolution of TV technology after colour TV. Digital TV allows a number channels in the same bandwidth that a Terrestrial TV needed to allow one channel. This change enabled a dramatic increase of more channels in comparison to basic terrestrial TV which only had a limited amount of channels.
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