Learn About DTV
What You Need to Know About Digital TV Sets
Digital Television Tuners
The Commission's digital tuner rule specifies that as of March 1, 2007, all new TV sets must include digital tuners. This rule prohibits the manufacture, import, or interstate shipment of any device containing an analog tuner, unless it also contains a digital tuner. Despite this prohibition on manufacture and shipment, retailers may continue to sell analog-only devices from existing inventory. As a result, at the point of sale, many consumers may not be aware that this equipment will not be able to receive over-the-air-television signals.
To address this issue, the FCC has adopted a rule requiring sellers to display the following text if they are selling TV equipment with only an analog broadcast tuner:
This television receiver has only an analog broadcast tuner and will require a converter box after February 17, 2009*, to receive over-the-air broadcasts with an antenna because of the Nation's transition to digital broadcasting. Analog-only TVs should continue to work as before with cable and satellite TV services, gaming consoles, VCRs, DVD players, and similar products. For more information, call the Federal Communications Commission at 1-888-225-5322 (TTY: 1-888-835-5322) or visit the Commission's digital television website at: www.DTV.gov.
* Please note that Congress changed the DTV Transition deadline to June 12, 2009.
Digital Television Quality Levels
There are many quality levels of digital television programming. The most common are:
|Standard Definition TV (SDTV) - SDTV is the basic level of quality display and resolution for both analog and digital. Transmission of SDTV may be in either the traditional (4:3) or widescreen (16:9) format.|
|Enhanced Definition TV (EDTV) - EDTV is a step up from Analog Television. EDTV comes in 480p widescreen (16:9) or traditional (4:3) format and provides better picture quality than SDTV, but not as high as HDTV.|
|High Definition TV (HDTV) - HDTV in widescreen format (16:9) provides the highest resolution and picture quality of all digital broadcast formats. Combined with digitally enhanced sound technology, HDTV sets new standards for sound and picture quality in television. (Note: HDTV and digital TV are not the same thing — HDTV is one format of digital TV.)|