Home Toys Article
- December 2005 -
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Are you planning a Plasma TV purchase? Plasma televisions are among the most expensive big screen options. Hence, proper planning of your purchase is essential to enjoy the best results. Discover the features to look for when choosing your flat-panel Plasma display TV set in this Plasma Television Buying Guide.
By: Andrew Ghigo
What to look for when buying a Plasma Television
As with all big screen TVs, the choice of a plasma television is in reality a function of finding the right trade-off between screen size and supported features for your available budget.
This budget issue is even more important when it comes to plasma TVs. It is true that we are seeing more and more of the so-called cheap plasma TVs in the sub-$2000 price tag, yet as one starts stretching the screen size over and above the 42-inch entry-level mark, price increases drastically.
Before you start shopping around for your plasma display, it is important that you make a prioritized list of the features that are most important to your needs; this should include:
· Screen Size
· Display resolution
· Support for HDTV
When evaluating your options, keep in mind that plasma's are expensive - hence the end approach is a trade-off between the desired features and price in order to match your budget.
Ultimately, it is your budget that will drive your purchase - hence you may have to scale-back accordingly.
Always start with Screen Size
Plasma TV screens range in size from typically 37-inches to the latest 70-inch and 80-inch big screen giants.
Screen size is a big factor in plasma pricing and is the most important feature you need to decide on. You can always find smaller screens in the 37-inch to 42-inch domain, for $2,000 to $3,000. Some bare-bones models from major manufactures like Panasonic and Samsung, are even selling at slight less than $2,000.
Therefore, the best way to start choosing your plasma TV is to select the screen size you want, and then evaluate your options.
This is not an issue where if you can afford it, buy it! Here there is a very important aspect to take into consideration when deciding on your Plasma TV screen size - you need to choose one that fits your room. This does not simply mean a screen size that will fit your wall or available cabinet space only. Even more important is the need to match the chosen screen size with your available viewing distance. (More on this can be found in our detailed article on TV Viewing distance and screen placement in the home theater.)
Many argue that TV viewing distance is a matter of personal preference. To a certain extent, this is true, but there are a few guidelines worth considering if you want to enjoy the best possible viewing experience. In essence, a 42" EDTV plasma television would require 10 feet between you and your screen - you may get close to 9 feet for a HDTV plasma TV of the same screen size. However, try not to get closer than this as you may start seeing the pixel build-up structure on the screen - which can be extremely annoying.
Display Resolution and Support for HDTV
The native resolution of a plasma display is another important factor to consider when choosing your plasma TV.
Generally, picture quality from a plasma TV is very good irrespective of the set resolution. Yet higher resolution plasmas will be able to display certain video content better.
This becomes an issue especially when watching an HDTV signal on your Plasma TV. 720p HDTV supports a resolution of 1280 x 720 while 1080i/1080p HDTV supports 1920 pixels by 1080 lines.
This means that to be considered true HD, the plasma display must have a native resolution of at least 1024 x 720. Normally, HDTV plasma displays will support a resolution of 1024 x 768.
Some HDTV displays come with a higher resolution - 1280 x 768 or 1366 x 768. These higher resolutions will enable the respective sets to display a full 720p HDTV image without re-scaling.
Plasma TV sets with a lower resolution will still be able to display a high definition video signal if they have the necessary electronics. They do so by re-scaling the image. In this case, re-scaling means disposing of some of the image information in order to fit the set native resolution. Low-resolution plasmas - also referred to as EDTV plasma televisions - tend to have a resolution of 852 x 480 pixels.
This resolution is what progressive scan DVDs and Digital Television will deliver. It looks as good as any plasma with a higher resolution when displaying these signals. The only visible difference between plasmas with a resolution of 1024 x 720 or higher, and 852 x 480, is when watching true HD material.
A few words about Digital Television and HDTV: While HDTV offers a clearer picture than regular television, not all setups allow you to take full advantage of HDTV. It all depends on the quality of your HD source. If your source is a compressed signal e.g. TiVo, then you cannot take full advantage of the quality supported by HDTV.
It is also important to remember that HD still represents a small portion of all available TV content.
Connectivity and Features
Inputs: A plasma TV should include the inputs you need to plug in the various video components. These should include composite, S-Video, component video, DVI, HDMI, and RGB. Preferably, look for a model that would also provide you with a set of front or side-panel A/V inputs for convenient camcorder or video game hookup.
RGB is a standard 15-pin computer input. Composite video is a single line video output that is typical on VCRs, cable/satellite receivers, and DVD players. The next step up in quality is S-video. This can be found on DVD players and most cable/satellite boxes. Component video, which is of a higher quality than S-Video, divides the video signal into red, green, and blue; it is mainly found on progressive scan DVDs and some newer cable/satellite boxes.
DVI and HDMI are purely digital connections; the main difference between the two is that HDMI carries also the audio on the same interconnect used for the video. Both interfaces are capable of supporting up to 1080 lines of picture resolution. In order words, they both can handle HDTV.
Additional Features: Supported connectivity and additional features all add up to the final product price. If you can afford to add a little more to your available budget, you can normally find models with additional features that support a wider range of video inputs, better control options, and support for HDTV.
A Final Advice
Keep in mind that price does not equate to performance. It may mean a bigger screen size but not necessary a better picture. Hence, if you are still uncertain as to the best way to go, your primary consideration here should always be - how good the picture will look on your big screen plasma TV.
More information on Plasma Televisions is available at Practical Home Theater Guide. This article is an excerpt from a series of informative guides appearing under the Plasma TV Guides section of the site.
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