The benefits of digital television are amazing and include:

Better picture quality: Digital technology allows the transmission of pictures with higher resolution for dramatically better picture and sound quality than currently available (HDTV). Most viewers will see improved clarity and color when watching their favorite news, sports or entertainment programming....

The digital television transition (also called the digital switchover or analogue switch off) is the switchover from analog (the traditional method of transmitting television signals) to exclusively digital broadcasting of free television programming. The transition from analog to digital television represents the most significant advancement of television technology since color TV was introduced.

Countries that are already switched-off to digital television are:...

Digital Television or DTV is new technology that will replace today's analog television system. DTV is more efficient and more flexible than the traditional way of broadcasting known as analog. Digital television allows higher-quality images and sound and more programming choices than analog television does. However a digital signal does not necessarily carry a higher-quality image or sound than an analog signal.

DTV enables broadcasters to offer television with better picture and sound quality., DTV makes it possible for stations to broadcast multiple channels of free programming all at once, called multicasting, instead of broadcasting one channel at a time. DTV technology can also be used to deliver future interactive video and data services that analog technology can’t provide.
DTV offers several broadcast options, two of which are considered to be HDTV formats. Some of the more common DTV standards include:...