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Digital Television. It’s Coming February 17, 2009. Do you know where your programs are? . Digital Television. What Is It? A Totally New Television System. Digital Television. What was wrong with the old Analog system?. Digital Television. What was wrong with the old Analog system?

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Digital Television

  • It’s Coming February 17, 2009. Do you know where your programs are?


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Digital Television

What Is It?

  • A Totally New Television System


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Digital Television

What was wrong with the old Analog system?


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Digital Television

What was wrong with the old Analog system?

  • 1930’s Technology


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Digital Television

What was wrong with the old Analog system?

  • 1930’s Technology

  • Black & White


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Digital Television

What was wrong with the old Analog system?

  • 1930’s Technology

  • Black & White

  • Monophonic Sound


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Digital Television

What was wrong with the old Analog system?

  • 1930’s Technology

  • Black & White

  • Monophonic Sound

  • Maximum Screen Size: 19 inches


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Digital Television

What was wrong with the old Analog system?

  • 1930’s Technology

  • Black & White

  • Monophonic Sound

  • Maximum Screen Size: 19 inches

  • Kluged Retrofits: Still not close to photographic and larger-than-life quality of movies.


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Digital Television

Why Now? Actually it started in the 1980s


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Digital Television

Why Now? Actually it started in the 1980s.

  • Japanese Developed Analogue High Definition TV & Began Marketing it in the US.


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Digital Television

Why Now? Actually it started in the 1980s.

  • Japanese Developed Analogue High Definition TV & Began Marketing it in the US.

  • Congress Feared Further Technology & Patent Drain


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Digital Television

Why Now? Actually it started in the 1980s.

  • Congress asked American companies to develop a more/better American System

    • Offered no government funding but instead enticed with opportunities for patent royalties.

    • Would conduct “fly-off” of all submitted systems.

    • 4 teams of companies entered the competition.


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Digital Television

Why Now? Then Why Did It Take So Long To Develop?

  • Broadcasters insisted on being included; i.e. the high definition system would have to fit within current licensed stations (6 MHz Bandwidth/Channel).

    • The Japanese system had required higher bandwidth cable and satellite distribution.


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Digital Television

Why Now? Then Why Did It Take So Long To Develop?

  • Broadcasters insisted on being included; i.e. the high definition system would have to fit within current licensed stations (6 MHz Bandwidth/Channel).

    • The Japanese system had required higher bandwidth cable and satellite distribution.

  • FCC conducted not one, but three flyoffs over 10 years and found no system satisfactory.


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Digital Television

Why Now? Then Why Did It Take So Long To Develop?

  • Broadcasters insisted on being included; i.e. the high definition system would have to fit within current licensed stations (6 MHz Bandwidth/Channel).

    • The Japanese system had required higher bandwidth cable and satellite distribution.

  • FCC conducted not one, but three flyoffs over 10 years and found no system satisfactory.

  • During the third flyoff, one team proposed a digital system which showed promise.


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Digital Television

Why Now? Then Why Did It Take So Long To Develop?

  • The four competing teams of companies and research institutions were about to drop out of the development: over 10 years of IR&D with no return in sight.


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Digital Television

Why Now? Then Why Did It Take So Long To Develop?

  • The four competing teams of companies and research institutions were about to drop out of the development: over 10 years of IR&D with no return in sight.

  • The FCC suggested that the four teams agree to share patent royalties and combine efforts to use the best of all proposed systems.


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Digital Television

Why Now? Then Why Did It Take So Long To Develop?

  • The four competing teams of companies and research institutions were about to drop out of the development: over 10 years of IR&D with no return in sight.

  • The FCC suggested that the four teams agree to share patent royalties and combine efforts to use the best of all proposed systems

  • This Grand Alliance completed development of the current “ATSC” system in the mid 1990s and the FCC adopted it in 1997.


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Digital Television

What Is Better About Our New “ATSC” Television System?


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Digital Television

What Is Better About Our New “ATSC” Television System?

  • Needs Fewer Channels


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Digital Television

What Is Better About Our New “ATSC” Television System?

  • Needs Fewer Channels

  • Versatile Content


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Digital Television

What Is Better About Our New “ATSC” Television System?

  • Needs Fewer Channels

  • Versatile Content

  • HDTV Options:

    • Photographic Picture

    • Wide-Screen Like Movies

    • Discrete Surround Sound


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Digital Television

  • Picture Quality

    • Much Higher Resolution: 1 or 2 million pixels versus 230,000 for analogue broadcast or 345,000 for DVD


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Digital Television

  • Picture Quality

    • Much Higher Resolution: 1 or 2 million pixels versus 230,000 for analogue broadcast or 345,000 for DVD

    • Wider Color Gamut - More Saturated Colors


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Digital Television

  • Picture Quality

    • Much Higher Resolution: 1 or 2 million pixels versus 230,000 for analogue broadcast or 345,000 for DVD

    • Wider Color Gamut - More Saturated Colors

    • Wider Color Gamut - Many More Hues


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Digital Television

  • Picture Quality

    • Much Higher Resolution: 1 or 2 million pixels versus 230,000 for analogue broadcast or 345,000 for DVD

    • Wider Color Gamut - More Saturated Colors

    • Wider Color Gamut - Many More Hues

    • Better Color Spatial Resolution - Patterned Versus Pastel Shirts


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Digital Television

  • Wide-Screen Aspect Ratio

    * * * *

    * * * *

    * * * *

    * * * *

    Resolution 4 Hor. X 4 Vert. = 16 Pixels

    Aspect Ratio 4:4 or 1.0 to 1.0


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Digital Television

  • “Academy” Aspect Ratio

    * * * *

    * * * *

    * * * *

    Resolution 4 Hor. X 3 Vert. = 12 Pixels

    Aspect Ratio 4:3 or 1.33:1.0

    Analogue TV Has Theoretical 640 Hor. X 480 Vert. = Aspect Ratio 1.33:1.0


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Digital Television

  • Wide Aspect Ratio

    • Typical Movie Aspect Ratios - 1.33:1.0 (Edison),1.66:1.0, 1.85:1.0, 2.05:1.0, 2.35:1.0

    • How can HDTV accommodate all these aspect ratios? Take the geometric mean - 1.78:1.0

    • Actual Pixel Counts

      • 1280 X 720 = ~1 Megapixel; Refreshed 60 Times/Sec.

      • 1920 X 1080 = ~2 Megapixels; Refreshed 30 Times/Sec.


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Digital Television

3. 5.1 Dolby Digital Surround

  • Left Front, Center Front, Right Front, Left Surround, Right Surround, Subwoofer

  • Also Carries Regular Stereo For TV Speakers


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Digital Television

What Happens To My Old TVs When Analogue TV Is Turned Off on Feb 17, 2009?

  • Will need a converter box

    • Satellite receiver

    • Cable Box

    • Over-The-Air Box

  • Picture will still be standard definition on old TV, and will be letterboxed to accommodate wide-screen programs (or else 1. the sides of the picture will be cut off or 2. everyone will look really thin!)


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Digital Television

The Coupon Progam

  • Nielson estimates 14.3 million US households rely on over-the-air TV. That’s 12% of the nation’s households.

  • Each household can apply for up to 2 $40. coupons to spend on ATSC digital tuner boxes for analog TVs.

  • Congress has allotted $1.5 B for the program to be administered via the National Telecommunications and Information Administration. = 33.5 Million Coupons.

  • Boxes are expected to sell for $50. - $70. 250 major retailers have been approved to sell them.

  • More than 1 million households have requested and received coupons so far.

  • http://www.ntia.doc.gov/dtvcoupon/


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Digital Television

What do I need to know to buy a new HDTV? Must have:

  • ATSC Tuner


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Digital Television

What do I need to know to buy a new HDTV? Must have:

  • ATSC Tuner

  • QAM Tuner


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Digital Television

What do I need to know to buy a new HDTV? Must have:

  • ATSC Tuner

  • QAM Tuner

  • Pixel Count At Least 1280 X 720 (“720p”)


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Digital Television

What do I need to know to buy a new HDTV? Must have:

  • ATSC Tuner

  • QAM Tuner (Basic Cable)

  • Pixel Count At Least 1280 X 720 (“720p”)

  • Diagonal Size = ~ 1/2 Viewing Distance


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Digital Television

What do I need to know to buy a new HDTV? Nice to have:

  • HDMI Hookup (Still Has Bugs)


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Digital Television

What do I need to know to buy a new HDTV? Nice to have:

  • HDMI Hookup (Still Has Bugs)

  • Cable Card


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Digital Television

What do I need to know to buy a new HDTV? Nice to have:

  • HDMI Hookup (Still Has Bugs)

  • Cable Card

  • Pixel Count: 1920 X 1080 (“1080I” or “1080P”)


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Digital Television

What do I need to know to buy a new HDTV? Nice to have:

  • HDMI Hookup (Still Has Bugs)

  • Cable Card

  • Pixel Count: 1920 X 1080 (“1080I” or “1080P”)

  • 120 Hz Refresh or 60/72 Hz Refresh


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Digital Television

What do I need to know to buy a new HDTV? Nice to have:

  • HDMI Hookup (Still Has Bugs)

  • Cable Card

  • Pixel Count: 1920 X 1080 (“1080I” or “1080P”)

  • 120 Hz Refresh or 60/72 Hz Refresh

  • 3D Ready


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Digital Television

What do I need to know to buy a new HDTV? Nice to have:

  • HDMI Hookup (Still Has Bugs)

  • Cable Card

  • Pixel Count: 1920 X 1080 (“1080I” or “1080P”)

  • 120 Hz Refresh or 60/72 Hz Refresh

  • 3D Ready

  • More Color Ready

    • Deep Color (10-14 bits/Primary)

    • xvYCC Extended Color (LED, Laser Illumination)


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Digital Television

What Do I Need To Know To Buy A New TV? How Do I Judge Picture Performance?

  • Brightness (Red Herring - only relevant for very bright rooms)


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Digital Television

What Do I Need To Know To Buy A New TV? How Do I Judge Picture Performance?

  • Brightness (Red Herring - only relevant for very bright rooms)

  • Color Accuracy - Do they look natural?


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Digital Television

What Do I Need To Know To Buy A New TV? How Do I Judge Picture Performance?

  • Brightness (Red Herring - only relevant for very bright rooms)

  • Color Accuracy - Do they look natural?

  • Shadow Detail


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Digital Television

What Do I Need To Know To Buy A New TV? How Do I Judge Picture Performance?

  • Brightness (Red Herring - only relevant for very bright rooms)

  • Color Accuracy - Do they look natural?

  • Shadow Detail

  • Instantaneous Contrast


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Digital Television

What Do I Need To Know To Buy A New TV? How Do I Judge Picture Performance?

  • Brightness (Red Herring - only relevant for very bright rooms)

  • Color Accuracy - Do they look natural?

  • Shadow Detail

  • Instantaneous Contrast

  • Motion Persistence?


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Digital Television

What Do I Need To Know To Buy A New TV? How Do I Judge Picture Performance?

  • Brightness (Red Herring - only relevant for very bright rooms)

  • Color Accuracy - Do they look natural?

  • Shadow Detail

  • Instantaneous Contrast

  • Motion Persistence?

  • Contouring?


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Digital Television

What Do I Need To Know To Buy A New TV? How Do I Judge Picture Performance?

  • Brightness (Red Herring - only relevant for very bright rooms)

  • Color Accuracy - Do they look natural?

  • Shadow Detail

  • Instantaneous Contrast

  • Motion Persistence?

  • Contouring?

  • Off Axis Viewing (Depends on seating).

    • Brightness Diminishes

    • Colors Change


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Digital Television

What Type Of HDTV Format Should I Buy?

  • Rear Projection - Best Value.

    • New models are no deeper than Flat Panels on their stands.

  • Front Projection - Best to Suspend Disbelief

  • Picture Tube – Smaller Size & Heavy, But Extremely Good Picture In Many Ways

  • Flat Panel – Lifestyle Choice, Lifestyle Cost. Vary Greatly in Picture Quality.


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Digital Television

What Type Of HDTV Technology Should I Buy?

Alphabet Soup, But You Need to Know:

  • CRT Front Projectors and Direct View Sets

    • Analog Picture Resolution

    • Superb Color Accuracy

    • Superb Contrast

    • Superb Blacks

    • Superb Off Axis Viewing

    • Limited In Brightness

    • Lose Brightness With Age

    • Susceptible to Burn-in

    • Limited In Size for Direct View

    • Very Heavy

    • Hard To Find


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Digital Television

What Type Of HDTV Technology Should I Buy?

Alphabet Soup, But You Need to Know:

  • 3LCD Front Projectors and Rear Projection Sets

    • Digital Picture Resolution - many 1920 X 1080

    • Screen Door Effect - Acceptable Pixel Fill

    • Mediocre Contrast - but gradually improving

    • Mediocre Blacks - but gradually improving

    • Mediocre Off Axis Viewing (Rear Projection)

    • Good Brightness

    • Brightness Ages Some, but Restores w. New Bulb

    • Bulb Life 2000 - 4000 Hours. Cost $300. - $400.

    • Cheapest Projectors and Projection Sets


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Digital Television

What Type Of HDTV Technology Should I Buy?

Alphabet Soup, But You Need to Know:

  • DLPFront Projectors and Rear Projection Sets

    • Digital Picture Resolution - many 1920 X 1080

    • Color Wheel Can Cause Fringing - hence multispeed.

    • Extended Color Gamut with Optional 6 Primary Colors

    • Screen Door Effect - Very Good Pixel Fill

    • Good Contrast - and keeps improving

    • Good Blacks - and keeps improving

    • Mediocre Off Axis Viewing (Rear Projection)

    • Good Brightness

    • Brightness Ages Some, but Restores w. New Bulb

    • Bulb Life 2000 - 4000 Hours. Cost $300. - $400.

    • Wide Range Of Price Performance. 3 DLP the Best


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Digital Television

What Type Of HDTV Technology Should I Buy?

Alphabet Soup, But You Need to Know:

  • LCOS (D-ILA & SXRD)Front Projectors and Rear Projection Sets

    • Digital Picture Resolution - many 1920 X 1080

    • Screen Door Effect - Very Good Pixel Fill

    • Good Contrast - and keeps improving

    • Good Blacks - and keeps improving

    • Mediocre Off Axis Viewing (Rear Projection)

    • Good Brightness

    • Brightness Ages Some, but Restores w. New Bulb

    • Bulb Life 2000 - 4000 Hours. Cost $300. - $400.

    • Price Competitive with DLP


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Digital Television

What Type Of HDTV Technology Should I Buy?

Alphabet Soup, But You Need to Know:

  • Plasma Flat Panels

    • Digital Picture Resolution - some 1920 X 1080, many 1340 X 768, Beware 1024 X 768 (43 inch)

    • Screen Door Effect - Very Good Pixel Fill

    • Good To Great Contrast - Rivals CRT

    • Good to Great Blacks - Rivals CRT

    • Superb Off Axis Viewing - Rivals CRT

    • Good Brightness

    • Rich Colors

    • 40,000 Hour Predicted Life But Will Love Brightness w. Age

    • Susceptible to Burn-In

    • Expensive, But Cheaper Than Flat Panel LCD for Large Sizes


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Digital Television

What Type Of HDTV Technology Should I Buy?

Alphabet Soup, But You Need to Know:

  • LCD Flat Panels

    • Digital Picture Resolution - Many 1920 X 1080, Some 1280 X 720, Beware 1080 X 1080, Many SD (Smaller)

    • Brightest Display Technology

    • Least Refined Display Technology - Digital Grain

    • Screen Door Effect - Acceptable Pixel Fill

    • Mediocre Contrast - But Gradually improving

    • Mediocre Blacks - But Gradually Improving

    • Poor Off Axis Viewing - Brightness and Color Shifts

    • Wide Range of Picture Quality & Prices, but …

    • Getting Ever Cheaper To Produce - Rivals CRT in Cost for Small Screen Sizes and Is Sexier

    • Will Eventually Rule The Mass Market


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Digital Television

What Happens When I Get The Set Home? Programming Sources:

  • Over-The-Air Free: All local stations now have digital channels. Needs a good antenna.

    • During set-up your set will scan for them and store.


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Digital Television

What Happens When I Get The Set Home? Programming Sources:

  • Over-The-Air Free: All local stations now have digital channels. Needs a good antenna.

    • During set-up your set will scan for them and store.

  • Time-Warner Cable: Some local digital stations available but not NBC or WB. + Optional HD Cable Network “Tier” + HD Premium Channels Available


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Digital Television

What Happens When I Get The Set Home? Programming Sources:

  • Over-The-Air Free: All local stations now have digital channels. Needs a good antenna.

    • During set-up your set will scan for them and store.

  • Time-Warner Cable: Some local digital stations available but not NBC or WB. + Optional HD Cable Network “Tier” + HD Premium Channels Available

  • Satellite: No local digital channels available yet.

    • DirectTV: More HD Every Week As Cable Networks Convert. Rumored Reformatted to 1440 X 1080

    • Dish Network: More HD Every Week As Cable Networks Convert + 15 original HD networks from Voom. Better Picture Quality


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Digital Television

“Cable” Networks In HD

  • Basic Networks:

    A&E Animal Planet Discovery ESPN

    ESPN2 Food Network Golf Channel HGTV

    National Geog. Science Channel TBS TLC

    TNT NFL

  • Premium Networks:

    Big 10 Cinemax HBO Showtime Starz

  • HD Only Networks:

    HDNetHDNet Movies HD News HD Theater Universal HD

  • Voom HD Only Networks (Dish Network Satellite Only):

    Animania Equator Family Room Film Fest

    Gallery Gameplay Kung Fu MHD

    Monsters Rave Rush Treasure

    Ultra World Cinema WorldSport


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Digital Television

Collecting HD Programs

  • Digital VHS

    • Use D-VHS or S-VHS Tape

    • 2 1/2 Hrs HD/Tape - 3 hours of TV Minus Commercials

    • Simple Operation via Firewire from DVR

    • Also Records/Plays Regular Tapes

    • HD Movies Available on D-Theater Tapes for 5 Years

  • Blu-Ray:

    • Different Dimensions From DVD

    • Require New Factories To Produce

    • Most Discs So Far Are Single Layer

    • 25 Gbytes/Layer

    • Players Sold 2007: 600,000 (Not Including Playstation)

    • Starting Price: $400.


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Digital Television

Collecting HD Programs

  • HD-DVD: Cheaper Players & Discs

    • Discs Have Same Structure As DVDs

    • Discs & Players Are Cheaper To Produce

    • Discs Can Be Produced In Regular DVD Factories

    • Most Discs Are Dual Layer

    • 15 Gbytes/Layer

    • More Interaction Capability; Fully Ramped Up from Start

    • Some Dual Discs: SD & HD on Same Disc

    • Players Sold in 2007: 900,000

    • Player Prices Start $150.


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Digital Television

Blue-Laser-Disc Format War

  • Studios Supporting Only Blu-Ray:

    Columbia Fox Lionsgate

    Miramax MGM Pixar

    Screen Gems Sony Pictures Touchstone

    Tristar Walt Disney Pictures Warner Bros.

  • Studios Supporting Only HD-DVD:

    Bandai Visual DreamworksDreamworks Animation

    DVD International HDNet Image Entertainment

    Interscope Paramount Universal

    Weinstein

  • Studios Supporting Both:

    Concert Hot Spot Discovery Channel Eagle Rock

    HBO Magnolia New Line



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Digital Television

  • Home Theater Questions?


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