Digital Television Fundamentals

Digital television (DTV) is the transmission of audio and video data by digitally processed and multiplexed signals compared to analog and channel separated signals used by analog television. DTV represents the most significant evolution in television technology since color television in the 1950s. The transition from analog to digital broadcasting began around 2006 with many countries at various stages of adaptation. DTV provides new features that analog television cannot support including the need for less bandwidth and higher image resolution, transmission via several channels including terrestrial transmitters using antennas, digital cables and satellites, microwaves and the internet.