Advantages of High Definition TV
There are many advantages of High definition TV or HDTV including clearer pictures, superior sound quality,
progressive scanning and a wider viewing screen. For people looking to set up the ultimate home theater system, a
widescreen television set is the number one choice. However, taking into account the numerous choices and options
available, shopping for that new high definition TV can be confusing to say the least.
The majority of HDTV sets that are currently available are big screen and are also generally expensive. Smaller
screened televisions with digital capabilities are due to hit the market in 2007. Some estimates indicate that only
around thirty million televisions in the United States have digital tuners, which means that there are some several
hundred million sets that are not ready for the digital television revolution.
So, what is the best way to cut through the confusion when choosing a high definition television. It is a good
idea, when shopping for a new HDTV, to do your own research and get to know the product that you want to buy. HDTV
setups can be very expensive, so make a point to shop around and ask lots of questions before parting with any
money. Some of the larger sets available can run into thousands of dollars just for the television itself.
At the present time, there are three methods of broadcasting digital television signals.
- SD - Standard Definition
- ED - Enhanced Definition
- HD - High Definition
Standard definition and Enhanced definition can be broadcast with a traditional 4:3 square screen format or in a
movie like widescreen format with reduced picture quality. High definition signals however, are all broadcast in
wide screen format, which makes for a crisper, clearer picture.
There are numerous different sizes and styles of HDTV sets to choose from. Consumers have the choice of plasma,
LCD (liquid crystal display), DLP (digital light processing) or LCOS (liquid crystal on silicon) monitors. There
are also projection displays to consider, which also come in LCD, DLP, and LCOS. Many people prefer the wall
display monitor that either plasma or LCD offers. However, these types of sets are usually the more expensive of
the high definition sets, especially the ones that are sized between forty and seventy inches. Lower down the price
ladder, but equally as good, are LCD displays that are sized at forty two inches and under.
So, what of the great benefits of using high definition television. For a start, HDTV has over twice the
sharpness and clarity of analog TV broadcasts together with a far superior color resolution. Imperfections that are
often seen on traditional television are another good reason why many prefer high definition to analog.
With HDTV, problems such as double images from ghosting or multi-path, snow caused from a weak signal and
picture sparkles from impulse noise are a thing of the past. These problems often seen on a conventional television
broadcast just do not occur on high definition TV.
High definition TV broadcasts have a screen resolution which is almost five times as sharp as conventional
broadcasts. This is due to the fact that high definition has double the lines of resolution when compared to a
traditional analog television set. While a traditional analog set can only display 525 lines (or 625 lines in the
case of a PAL signal) of resolution, HDTV broadcasts can display 1080 horizontal lines of resolution. This makes a
marked difference in the picture sharpness and quality.
When it comes to big screen analog broadcasts, the picture is severely degraded because of the screen size and
the lower resolution lines.