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Digital TV

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... broadcasting was the advance from radio to TV highlighted at the 1939 World's Fair ... Many television listings do not yet carry complete KUED digital ... – PowerPoint PPT presentation

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Title: Digital TV


1
Digital TV You
  • A primer on transitioning from analog to digital
    television

2
Where did TV come from?
  • The first real revolution in broadcasting was the
    advance from radio to TV highlighted at the 1939
    Worlds Fair
  • WWII trained thousands of engineers in TVs first
    cousin, radar
  • The number of TV stations grew slowly from 1945
    1955, allowing time for lots of lessons, mistakes
    and advancements
  • In the late 50s, the next revolutions took place
    simultaneously color video tape recording
  • KUED went on the air in 1958 as a service of the
    U of U

3
The genesis of Digital Television
  • The FCC began its first inquiry into Advanced
    Television (ATV) in 1987, which later became DTV
  • The FCC mandated that there would be no
    disruption of service to the public during the
    transition from analog to digital TV
  • Broadcasters were assigned separate channels for
    their DTV signals

4
The Bottom Line
  • Congress has put forth an unfunded federal
    mandate that all broadcasters analog signals be
    returned to the government by February 2009
  • Viewers will require either new televisions or
    converter boxes by February 2009

5
The Other Bottom Line
  • Television viewing is changing
  • TV is no longer only viewed via TV set

6
KUEDs transition to Digital
  • KUED uses the power of public television to
    engage your mind and enrich your life.
  • Public Television and KUED have undertaken an
    ambitious conversion to provide a more robust
    television service than anyone could have
    imagined years ago.
  • Your Window to the World capital campaign

7
What Digital means
  • Beautiful pictures, spectacular surround sound
  • Ability to broadcast AND to produce high
    definition programs
  • Currently three KUED channels to choose from
  • Enhanced opportunities for KUED to offer
    educational content for use in our schools K 12
  • KUED will be of even greater service to the
    University of Utah well be able to broadcast
    things like U of U sports, Hinkley Institute of
    Politics programs and more
  • Digital archives for our children grandchildren

8
  • KUED 7.1 offers all the programs you enjoy on
    KUED Nature, NOVA, Utah NOW, and more.

9
  • KUED-HD offers beautiful high definition PBS
    programs with 5.1 surround sound.

10
  • KUED-Plus offers a variety of programs including
    your favorite PBS programs and new additions like
    Charlie Rose, Tavis Smiley and Focus West.

11
TV Shapes Sizes
  • This film has been modified from its original
    version. It has been modified to fit your
    screen.
  • OLD Aspect Ratio 43
  • NEW 169
  • More like a movie
  • Better for your eyes

12
Bigger picturesgtfiner resolution
  • The image you see on your TV screen is made up of
    small rectangular dots called pixels (Picture
    Elements), and its the smallest resolvable
    rectangular area of an image.
  • DTV uses smaller, square pixels that are closer
    together

13
DTV Screen Choices
  • Cathode Ray Tube (CRT) Screen These are
    traditional color TV screens updated for digital.
    Resolution color capabilities vary from model
    to model. They have a very bright picture, but
    are limited in size the units are typically very
    heavy.

14
DTV Screen Choices
  • Rear Projection TVs These can be much larger
    than standard CRTs. They create the image on a
    small display, but then enlarge it onto the back
    of the screen. New digital projection
    technologies like Liquid Crystal Display (LCD),
    Digital Light Processing (DLP) and Liquid Crystal
    on Silicon (LCoS) create brilliant, wide-angle
    pictures on ever-larger screens.

15
DTV Screen Choices
  • Front Projectors These are TVs that create an
    image by projecting onto a wall or stand-alone
    screen (like a movie theater). Projectors use
    the same digital technologies as rear projection
    TVs, but because the screen is separate, the
    image can be the size of an entire wall.
    Projectors are not as bright and often require
    the room to be dark in order to clearly see the
    image.

16
DTV Screen Choices
  • Flat Panel TVs Flat Panel TVs are very thin and
    relatively lightweight, and are sometimes hung on
    the wall. Current flat panels use either LCD or
    plasma screen technology. Flat panel LCDs are
    very thin and produce extremely clear pictures.
    Plasma screen TVs produce images by lighting
    small pockets of colored gas. This allows the TV
    to create a bright, clear picture in large screen
    sizes while remaining only a few inches thick.

17
Ways to Watch KUED Digital TVThree Options

18
OPTION 1
  • Use a new digital tuner with your old TV and
    antenna
  • - Better picture
  • - All the digital channels
  • - View HD programs but at lower than HD
    quality
  • - No monthly subscription fee

19
OPTION 2
  • Use a new Digital TV (with built-in digital
    tuner) and your old antenna

20
OPTION 3
  • Use a new or old TV with a digital subscription
    to a program provider (cable)

21
  • Q A
  • ????????

22
What is digital television?
  • In a digital system, images and sounds are
    captured and transmitted using the same digital
    technology found in computers.
  • This digital revolution will not only
    dramatically improve the quality of the
    television picture, but also will make possible
    the over-the-air delivery of several simultaneous
    channels to viewers.

23
What is high definition television?
  • Digital technology allows KUED to broadcast
    programs in much higher quality and clarity than
    with analog television. Programs broadcast at the
    highest level of quality are referred to as High
    Definition or HD. With up-to-date television
    sets, viewers will be able to receive
    high-quality, crystal clear pictures on their
    televisions, which will be displayed in a wide
    screen format with CD-quality surround sound.

24
What is standard definition television?
  • Some programs may be broadcast at a slightly
    lower quality than HD and are referred to as
    Standard Definition or SD. These programs can be
    in the widescreen format. In general, the quality
    of the SD picture will surpass what you see on
    your older analog television set.

25
What is multicasting?
  • This new technology allows KUED to broadcast
    several channels simultaneously. We are currently
    transmitting two Standard Definition (SD)
    channels and one High Definition (HD) channel.
    Our new channel numbering scheme (KUED 7.1, KUED
    HD 7.2, KUED Plus 7.3) reflects this new ability.

26
Do I have to buy a new television set? Will I be
able to watch DTV on my old set?
  • You can continue to use your older television
    set. But you will need to purchase a separate
    digital tuner or subscribe to alternate program
    provider (such as cable or satellite) if you want
    to experience digital television. Bear in mind,
    however, that your older analog television set
    will not display digital programming with the
    clarity and quality of an up-to-date, digital
    set. To experience the full benefits of digital
    television, viewers will need new digital
    television sets.

27
Do I have to use an antenna again? What about
cable or satellite?
  • If you use an existing rooftop antenna, you
    should need only to connect your antenna wiring
    to your new DTV tuner or digital television. If
    you live along the Wasatch Front and are
    installing a new antenna, point it toward KUEDs
    digital transmitter located in the Oquirrh
    Mountains west of the Salt Lake Valley. This
    transmitter provides over the air service to
    Utahs Wasatch Front population. We are gradually
    adding digital service statewide through our
    extensive translator network. In the meantime, we
    have worked to get our channels on cable systems.
    Contact the video provider of your choice for
    more information.

28
How much do digital televisions cost? What should
I look for?
  • Prices for digital televisions continue to drop.
    Cost varies widely depending on the size, the
    level of capability and the options provided.
    Some sets include analog and or DTV tuners. Be
    sure that your set includes a digital tuner or
    expect to make alternate arrangements with a
    television provider such as cable or satellite,
    or to buy an external HDTV tuner.
  • To enjoy the highest quality HD picture, look for
    a set capable of displaying 1080 lines on the
    screen and a high resolution of at least 1366 x
    768. Sets with higher contrast ratios will make
    the picture more crisp and realistic. Note that
    the labeling on some sets claim to be HD
    compatible while only having a limited display
    of 480 or 720 lines. Digital set-top tuners for
    your older analog televisions are available now.
    Shop carefully and speak with a well informed
    sales person.

29
How do I know whats on?
  • Many television listings do not yet carry
    complete KUED digital channel schedules. The most
    up-to-date schedule listings are available at
    KUED.org/whats on. You can also use the
    on-screen program guides provided by your cable
    and satellite service or on KUEDs digital
    channels.

30
Can I use my existing VCR or DVD player?
  • Yes. Digital televisions come with the same
    input/output ports that conventional analog
    televisions provided.

31
Whats next in DTV?
  • Enhanced TV or Interactive TV (ITV) is the likely
    next step. DTV is heading toward a convergence
    with computers and students, sports fans, news
    junkies and others will get more out of
    television. Since DTV broadcasts are just long
    streams of bits, each channel can add pictures,
    multimedia games, illustrated articles, maps
    all related to the TV program youre watching.
    Stay tuned!

32
Digital TV Definitions
  • The Digital Age has spawned a whole new language,
    filled with acronyms and techie-speakour DTV
    Glossary offers the most common phrases and their
    non-technical definitions.

33
Digital Television is Here!
  • KUED is thrilled to be part of the digital
    revolution in television
  • The bottom line for you, our viewer, is more,
    better looking, better-sounding television
    programs with more ways to watch than ever before
  • Questions?
  • Call Beth Wolfer at 801-587-9213
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