Digital TV

Digital TV uses digital signals to send audio and video. This is an upgrade from the old analog signal. In most countries, digital signals are required and special converter boxes or new TVs will be required to use digital signals if you still have analog. The digital signal has a much higher quality than the older analog including better picture, larger picture and better sound. In America, a national campaign was ran in early 2009 to get all people to convert to digital TV. Digital signals can be divided into high definition or standard definition which is defined by the aspect ratio of pixels. However, both are still better quality than analog. Standard signal has a 4:3 ratio and is the common quality of all non-high definition TVs. High definition can be either 1080 or 720 with TV pictures that look incredible. There are various ways to receive digital signal to your TV. You can use an antenna that attaches to your TV which used to be the only way to get an extra signal. You can get a cable box from your local cable provider. Or you can get a satellite box that will pick up a satellite signal. Just because you get a digital TV doesn't mean you automatically have high definition or premiere audio sounds. There's still the difference between digital and high definition. However, a digital TV is still has a much better picture and sound then the old school analog TVs. When purchasing a digital TV make sure you understand whether it's a standard definition or high definition. Nowadays most high definition TVs have come down in price to make them more affordable. Additionally, digital TVs make it so you can hook them up to a surround sound stereo system and enjoy your viewing of movies and sports even more.