Showing posts with label lcd tv. Show all posts
Showing posts with label lcd tv. Show all posts
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HDTV High Definition

High Definition Signal
by Eli Yuliani (OurHdtvs)

One area of problem for HDTV is the so-called high-definition signal. It is because TVs and broadcast facilities should be made simultaneously compatible to make the high-definion technology work.

Because HDTV is digital, digital broadcasting system is required by it. Not unlike signals where simple radiowaves transmit TV signals, digital is somehow more complex and complicated.

In the US, since digital shift will require all households to throw their analog TV sets in favor of the digital TV sets, the legislation has passed a bill mandating the federal government to subsidize the shiff initially through offering subsidies to convereter boxes.

Converter boxes are machines that will convert digital broadcast signals into analog signals so the analog TVs can receive and show them off.

Because high definition TV sets are so, so expensive, the proposed bill is the alternative solution lawmakers have come out with so the digital shift could soon happen or be accelerated.

Similar measures are certainly dim and far away in other countries, especially in the third world.

DVD signals are one example that would clearly illustrate high-definion signals. DVDs are far clearer and more superior than its predecessors, the Betamax, the VHS and the VCD.

HDTV and shopping

The introduction of high-definion TVs has somehow made TV shopping far more complex and harder. It is because high-definion TVs have added to the already long list of TV names and models.

Although it would surely take into account to the consumers’ benefits, HDTV has somehow created further confusion among the TV set shoppers and buyers. Now they have to do a little research to find out more about the promising high-definion TV technology.

One downside to the emergence of high-definion TV is its very expensive price. Since it is new technology, it is expected that high-definion TVs are far more expensive and costlier than their analog counterparts.

Hdtv high definition or high-definion

High-Definition Television (Hdtv)

High-definion Tvs were introduced to the market in 1998. until then, it had just been an ambition and dream for all televiewers to experience near-perfect television viewing experience.

The wikipedia website defines high definition TV as a modern model of television that vastly uses the digital signal transmission technology.

The definition is very much accurate and up to date. HDTV could never be a full scale technology not unless a country completely mandates the switch of TV broadcasts to digital from analog.

Analog TV transmission is the current TV broadcast transmission used. The digital TV transmission, as the name implies, requires digital signal reception, digital transmitting technologies and digital receiving ends like the high definition TV.

In the United States, shift to digital broadcasting will be entirely implemented by February 2007. other countries will follow then, with Australia leading the other countries planning to shift to digital broadcasting by 2009.

HDTV vs. Analog

HDTV is far  better than your normal, traditional and conventional analog TV. It is because HDTV gives out clearer-resolution on its images and pictures. The sound quality is equally amazing.

Analog TVs have been around for quite some time. The mode of transmission of TV signal is somehow simple, but  more often, problematic and sub-standard.

Comparing HDTV and analog Tv is just like comparing betamax and dvd. Betamax technology was the early movie-video playing technology popularized by giant TV maker Sony.

Though betamax quality is acceptable, it was made obsolete and far less popular with the launch of the VHs technology, and later, the DVD technology.

DVD videos, apparently and noticeably are of great image quality. The sounds are equally good. You must be envisioning or picturing out this time how analog and HDTV compare with each other.

But for sure, the perks and distinct features of high definition Tvs will far offset the pricing downside. There is no arguing against that.

Check my other guide on HDTV
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HDTV

lcd tv, 1080p, televisions, 1080p hdtv
How High Is Your Definition?
by Eli Yuliani (OurHdtvs)
The increasing popularity of crystal-clear broadcasts in American TV has indicated that HDT has arrived and here to stay. Analog TV shift to an all-digital system herald a new dawn in the 65-year history of television. Hours of HDTV content are already available every night. Viewers can easily determine if a show is presented in HDTV if the message “Presented in high definition where available” is shown in the beginning of a program.

Basics of HDTV:


HDTV- a new type of television that combines an HDTV tuner and HD-capable display. Almost all of HDTV’s available in the market use the 16:9 widescreen aspect ratio. An HDTV tuner can receive analog and digital over-the-air broadcasts.

HDTV-ready TV- features only the high-resolution display and can only receive digital broadcasts if connected with a separate HDTV tuner. HDTV-ready TVs can have the 16:9 widescreen ratio or the square like 4:3 aspect ratio.

Choosing the right shape of a TV is important in the HDTV experience. A 4:3 screen will be advisable if a considerable amount of local and network dominate programming and these is a low number of over-the-air or cable HDTV programming in your TV market area.

However, with the arrival of new technology also calls for viewers to adapt to the situation. Those still using TV sets purchased nearly a decade ago will not be able to get the most out of the HDTV experience. For this you need to have a tuner to receive and decode HDTV signals from a source, and a high-quality screen that can reproduce the outstanding details and colors from an HDTV broadcast.

The chief reason why HDTV pictures look considerably clearer and crisper than normal TV is due to the higher resolution of HD. Normal TV pictures only have 480 lines of vertical resolution, while the most common HDTV’s have 1,080-line interlaces scan and 720-line progressive scan. The best analog quality that can be offered by analog TV is 480i, which in contract is the lowest quality signal in digital TV.

Getting started in HDTV is not as expensive like in the past few years, as prices of tuners and HDTVs continue to drop but the quality of products are constantly improving.

To help you maximize your HDTV setups without breaking the bank here are some tips to avoid costly mistakes and help you enjoy HDTV at its best.

Finding HDTV broadcasts within your area

Over-the-air-broadcasts: Nearly 1,500 local station across the US are transmitting Digital TV signals today. About 90% of digital station broadcasts are made in the UHF range an these can be accessed with the use of a normal UHF antenna. For this scenario you need:

- HD-compatible TV
- HDTV tuner- some are already built in an HDTV
- Outdoor or indoor UHF antenna
- The HDTV broadcasts in your area (of course!)


Cable HDTV:

Nearly all cable companies in the US offer HDTV service to their subscribers (especially those living the major cities and TV markets). Digital cable will offer more channels and the picture quality of broadcasts will be noticeably more crisp. However, consumers must always remember that “digital cable” is different from HDTV via cable. For this setup you need the following:

- HD-compatible TV
- HD-compatible cable box
- HD programming from cable company

Digital Satellite TV:

HDTV via satellite is available for those living the US and has a clear view of the sky. In short, this service is available almost everywhere. HDTV channels are already available from the top satellite TV providers DIRECTV and the DISHNetwork. Those lucky enough to live in major cities can even get local stations in HD via satellite. For this setup you need:

- HD-compatible TV
- HD-compatible satellite dish
- HD-compatible satellite receiver
- HD programming

Once you start to enjoy HDTV, going back to normal TV is likely not anymore an option. The crystal-clear viewing experience becomes addictive and anything less becomes mediocre. Many HDTV viewers have become impatient towards the slow growth in the number of compatible programming available.

However, HDTV will receive a boost from the introduction of the Blu-ray and HD DVD within the next twelve months. These new formats will enable HDTV viewers to watch and enjoy high-definition versions of their favorite movies for as long as they want.