Before you go off rushing to the store to get yourself a sky high priced HDTV consider these facts that you ought to know before rushing into a decision.
- Firstly just owning an HDTV will not give you crystal clear picture. You will need to have an HDTV signal as well to get that clarity.
- The programs that are broadcast in standard formats will not magically appear in high definition in your HDTV. However, most of the channels now allow digital signal reception and as time goes this will improve.
- Standard definition format can look really awkward in a 50 inches HDTV display screen. It is similar to blowing up a tiny image to monster size.
- Other than variation in pricing there is not much of a difference between the various display technologies available in the market to a customer.
- HDTV generally, generates a lot of heat. The bigger the size, the more heat it is expected to generate. It is advisable to have air conditioning system in the place where your HDTV will be likely to sit.
- HDTV Antennas works out to be much cheaper than normal antennas and vary from $20 to not more than $150. This means that there is no separate heavy investment on antennas as in SDTV. Also there is no separate fee for wireless transfer services.
- Unless you properly configure your HDTV set don’t expect it to work perfectly.
For this:
Firstly, use correct inputs to connect HDTV to its set-top box. Either use the DVI input or the 3 plugged RCA-type plugs. The RCA is marked “Y,” “Pb,” and “Pr”.
Then, because the composite and S-Video connector cannot read HD signals do not let anyone connect those inputs as it is dangerous. Program the set-top box to send only high definition signals to the HDTV screen through the options in the menu for this purpose. This can be set using the display settings and selecting either 1080i or 720p based on what the native resolution is.
- Just because your earlier TV had your favorite sports channel doesn’t mean that your HDTV will have the same numbering for this channel. You may have to search much lower down the list to find the same channel.
- HDTV antenna is similar to regular or normal television antenna and you must hook them up to your set before you start off. If your HDTV set does not have in-built tuner, external tuner box can be installed.
So why is everyone interested in HDTV?
Simply because it is better than the standard television! Digital audio, wider viewing area, and superior quality are some of the obviously influential reasons why you should go for them. You can watch details in a high definition television, which you cannot otherwise watch in a standard definition image. If you want to create the home-theater experience of being right in the center of action as you watch your favorite movie or basketball game, then you have come to the right place. A game of soccer will take on a whole new meaning with a HDTV in your midst.
With digital television, the transfer of information is in terms of data bits. So what does that mean to you? Not only you get superior picture and sound quality, but due to the high efficiency it also provides space for other users in the broadcast spectrum. HDTV is the next step of this digital TV and it transmits six times the information compared to the bandwidth of analog TV. Problems like discoloration, low quality, sharpness and other audio or video imperfections can be easily resolved by HDTV. No more fuzz, snow or ghost images on your television screen. It is a revolution on par with the jump from black and white to color.
What are some of the channels that are available now in high definition television? Along with improved quality, this is another benefit of HDTV. You can enjoy watching premium channels like HBO, Toon Disney, Cinemax and sports channels such as the NFL Network, NBA TV and the Tennis channel. You can also enjoy watching Animal Planet, the Discovery Channel, and National Geographic on a high-resolution television with a wider screen. There are about ninety five channels offered exclusively for high definition televisions. Most of the networks have now switched over to digital broadcasting. So you will either have to buy a digital television set or install a digital converter box. Of course, you can still order cable. In this scenario, why not buy a high quality digital television? That way, you will become a little wiser by paying less for ninety five high-resolution channels that you can actually watch. You don’t really need to go to theaters anymore. You can watch your favorite movie at home and enjoy that mesmerizing effect of amazingly sharp channel screens all night.
NEED FOR HDTV:
To understand HDTV we need to know how the technology which precedes this worked, namely CRT. CRT stands for Cathode Ray Tube and this basically means that the impact of electrons which is shot out of a gun like cathode causes the earlier TV signals to be displayed. This method is reliable but the problem is that it cannot be scaled up to higher resolutions. Due to this limitation, HDTV which stood for High Definition TV has a whole new concept to it which overcomes the disadvantages of CRT.
How is it that HDTV can give such a clear output whereas current TV is far lower in Quality?
HDTV has many times the number of scanning lines that are present in conventional TV sets. Scanning is the phenomenon by which the image is divided into thousands of rows of pixels which are displayed onto the screen for a fraction of a second. HDTV signals being digital contain a massive amount of data that is compressed using MPEG-2 compression standard but even this amounts to 19.39 Mbps! So this large amount of data is used to provide a crystal clear image for added viewing pleasure. HDTV has two resolutions of 780p and 1080i where ‘p’ stands for progressive scanning and ‘I’ for interlaced scanning.
A HDTV can be viewed in three ways which are:
Antenna: Most of the major networks in the US transmit HDTV signals and this signal is captured and fed through a HDTV receiver.
HD-DVD: HD content cannot be stored in just any device due to its massive size. Hence Blue ray format is used to store them in a compact fashion.
Set Top Box: Here you need to purchase a set top box and this receives the high capacity digital signal which it converts to analogy signal used by the HDTV. Also when buying a HDTV it should be HDTV Ready or else a tuner would have to be bought separately.
It’s all in the Signal and the Image:
HDTV is basically a much more data intense signal. This is the major difference between previous versions. However it is only now through Plasma and LCD displays that we have been able to take advantage of such high data rates. Data compression techniques have also made these schemes feasible. Thus make sure you understand the inner working of your HDTV before you decide to invest a large amount of money in this dream purchase.
Before you go off rushing to the store to get yourself a sky high priced HDTV consider these facts that you ought to know before rushing into a decision.
