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Digital Television (DTV)
is an advanced broadcasting technology that will transform your
television viewing experience. DTV enables broadcasters to offer
television with better picture and sound quality. It can also
offer multiple programming choices, called
multicasting, and
interactive capabilities.
Converting to DTV also will free up parts of
the scarce and valuable broadcast spectrum. Those portions of
the spectrum can then be used for other important services, such
as public and safety services (police and fire departments,
emergency rescue), and advanced wireless services.
The Transition to Digital TV
TV stations serving all markets in the
United States are airing digital television programming today,
although most will continue to provide
analog programming
through February 17, 2009. At that point, full-power TV
stations will cease broadcasting on their current analog
channels, and the spectrum they use for analog broadcasting will
be reclaimed and put to other uses.
The Commission's digital tuner rule
specifies that as of March 1, 2007, all new TVs 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 after February 17, 2009.
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:
Consumer Alert
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.
Analog TVs Will Need Additional Equipment
to Receive Over-the-air Television When the DTV Transition Ends
Consumers who rely on antennas (including
outside antennas and "rabbit ears") to receive over-the-air
broadcast signals on TV sets having only analog tuners will need
to obtain separate digital-to-analog
set-top converter
boxes to watch over-the-air TV. These boxes receive digital
signals and convert them into analog format for display on
analog TVs. Analog sets connected to such converter boxes will
display digital broadcasts, but not necessarily in the full,
original digital quality.
Converter Box Coupon Program
Between Jan. 1, 2008, and March 31, 2009,
all U.S. households will be eligible to request up to two
coupons, worth $40 each, to be used toward the purchase of up to
two, digital-to-analog converter boxes. The National
Telecommunications and Information Administration (NTIA) has
responsibility for administering the coupon program. More
information can be found at
www.dtv2009.gov.
Cable and Satellite TV
Cable subscribers may need new DTV equipment
to view DTV programming in digital format. You should ask your
cable provider what you will need and when.
Satellite subscribers may need new DTV
equipment to receive and view
high definition
digital programming. You should ask your satellite company what
you will need and when.
Digital television Quality Levels
There are many quality levels of digital
television programming. The most common are:
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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.
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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.
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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.)
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