Dish Network HDTV

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A brief on high definition television (HDTV)

High Definition Television - try asking a fifty year old man five years ago what it is and most likely you will get a face that looks as confused as you feel.

But is the concept really that alien?

Actually, the concept of High Definition television was popular in Japan for many years. It is only in the last couple of years that this concept has caught up with the Americans as well. And then one day boom, every one is talking about it. It has taken hold of the United States in a big way. Perhaps the most basic things one needs to know about High Definition TV or HDTV as it is more popularly known, is that is a totally separate television format from its predecessors; the normal television.

Knowledge of this fact alone can help one understand the nature of high definition television and how one can take advantage of it in one's home entertainment center.

Learn more about satellite HD services.

Having the best HD service with Dish Network 

When it comes to HDTV, I think Dish Network has the best - which explains why I am making a lens on Dish Network HD services.



Ever heard of DishHD? That's where Dish Network packed their HD services under one package.

At the time of writing, DishHD is America's largest HD programming lineup with over over 200 hours of high-definition programming each day! With more than 50 HD channels (with mostly are commercial-free programming in sports, movies, entertainment, and news), Dish Network users are well served with HD entertainment for almost 24x7! More on Dish Network DishHD here.

Differences between HDTV and normal analog TV 

So the next logical question that should pop up in your mind is "How is HDTV different from normal television?" How does HDTV provide a better viewing quality?

Many think HDTV just increasing the definition per unit area. But in fact, what HDTV does is quite the opposite of what many imagine. Fundamentally, HDTV is actually not to increase the definition per unit area, but rather to increase the percentage of the visual field contained by the image.

In quick, HDTV differs from normal in several ways like:
  • All high definition television programming has the same 16:9 aspect ratio unlike normal television which usually does not have this feature.
  • Picture Resolution: Television pictures are usually measured in the number of horizontal line resolution that they are composed of and the pattern that the lines are scanned onto the screen. For example; standard definition television has four hundred and eighty horizontal lines that are scanned in two separate steps: First the odd numbered lines are scanned onto the screen. A fraction of a second later, the even numbered lines is scanned, creating an illusion of a complete picture. This pattern is called an Interlacing Pattern and hence the standard definition television is said to have a resolution of 480i, whereas high definition television can have resolutions of 720i, 1080i.

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Lensmaster

tdove wrote...

Another great TV lens! Thanks for joining G Rated Lense Factory!

ReplyPosted February 04, 2008

DishHD programming lineup 

With just $20/mo, you will get up 39 national HD channels, 18 regional sports networks, 9 HD pay-per-view channels, plus any available local HD channels.

Basic DishHD channels


  • A&E HD
  • Animania HD
  • Discovery HD Theater
  • DISH Network PPV in HD
  • Equator HD
  • ESPN HD
  • ESPN2 HD
  • Family Room HD
  • Film Fest HD
  • Food Network HD
  • Starz HDTV
  • Treasure HD
  • Ultra HD
  • Universal HD
  • World Cinema HD
  • WorldSport HD
  • GamePlay HD
  • Gallery HD
  • HBO HD
  • Cinemax HD
  • HDNet
  • HDNet Movies
  • HDNews
  • HGTV HD
  • Kung Fu HD
  • Monsters HD
  • National Geographic Channel HD
  • NFL Network HD
  • Rave HD
  • Rush HD
  • Showtime HD
  • TNT HD



Regional Sports HD programming lineup

Beside standard HD choices, Dish Network also offers Regional Sports Networks (namely RSN) in high definition! The Regional Sports Network(s) you receive will be determined by your location, and the programming package you select. You must subscribe to a minimum of AT100 and DishHD to qualify. The following Regional Sports Networks are available on DishHD:

  • Altitude
  • CSN Mid-Atlantic
  • CSN West
  • Fox Sports Network Arizona
  • Fox Sports Network Cincinnati
  • Fox Sports Network Detroit
  • Fox Sports Network Florida
  • Fox Sports Network Midwest
  • Fox Sports Network North
  • Fox Sports Network Northwest
  • Fox Sports Network Ohio
  • Fox Sports Network Pittsburgh
  • Fox Sports Network Prime Ticket
  • Fox Sports Network Rocky Mountain
  • Fox Sports Network South
  • Fox Sports Network Southwest
  • Fox Sports Network West
  • Primetime
  • Sports South
  • SportsNet New York
  • SportsTime Ohio



Information source: AllSat DishHD programming.

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HDTV system on Wikipedia 

== History of high-definition television ==

The term high definition once described a series of television systems originating from the late 1930s; however, these systems were only "high definition" when compared to earlier systems that were based on mechanical systems with as few as 30 lines of resolution.

The British high definition TV service started trials in August 1936 and a regular service in November 1936 using both the Baird 240 line and Marconi-EMI 405 line systems. The Baird system was discontinued in February 1937. In 1938 France followed with their own 441 line system, which was also used by a number of other countries. The US NTSC system joined in 1939. In 1949 France introduced an even higher resolution standard at 819 lines, a system that would be high definition even by today's standards, but it was monochrome only. All of these systems used interlacing and a 4:3 aspect ratio except the 240 line system which was progressive (actually described at the time by the technically correct term of 'sequential') and the 405 line system which started as 5:4 and later changed to 4:3. The 405 line system adopted the (at that time) revolutionary idea of interlaced scanning to overcome the flicker problem of the 240 line with its 25 Hz frame rate. The 240 line system could have doubled its frame rate but this would have meant that the transmitted signal would have doubled in bandwidth, an unacceptable option.

Color broadcasts started at similar "high" resolutions, first with the US's NTSC color system in 1953, which was compatible with the earlier B&W systems and therefore had the same 525 lines of resolution. European standards did not follow until the 1960s, when the PAL and SECAM colour systems were added to the monochrome 625 line broadcasts.

Since the formal adoption of Digital Video Broadcasting's (DVB) widescreen HDTV transmission modes in the early 2000s the 525-line NTSC (and PAL-M) systems as well as the European 625-line PAL and SECAM systems are now regarded as "standard definition" television systems. In Australia, the 625-line digital progressive system (with 576 active lines) is officially recognized as high definition.

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