Introduction
Watching television has progressed from a luxury that only few had in their homes in the middle of the last century to the point where most consumers not only have one television, but often they may have several. And television programming has expanded greatly from just the three big networks to a whole host of other channels as well.
And along with this growth of interest in televison programming the technology of televisions has been steadily improving too. Today we have lots of choices to make when we are deciding to buy another television. Should it be an analog or digital TV? HDTV enabled or ready? Plasma or LCD screen? All of these decisions can seem to be confusing, but if you just understand a few basics about TVs you should be able to make the right choice for what will suit you best.
Let's start by discussing whether you should buy an analog or digital capable TV. Analog TV is simply TV you have been used to in past years. The signals are sent and received in analog format and it has worked fine for a long time. It has it's drawbacks though because analog TV signals can only hold so much data for the screen and sound, and an analog signal can degrade easily. Never fear though, analog TV will be fine for use for many years to come even after other technologies dominate. The good news is that analog TV sets are very cheap and you can get a lot for your dollar.
Digital TV signals allow the data sent by the TV station to be much more dense and include more information without very much degradation of signal. So digital TV usually makes for a much better picture and sound, especially on DVDs. Plus digital TV has made it possible for the newer standards of high definition programming. For the absolute best picture and sound the TV station should be broadcasting in high definition (or HDTV), and your TV should also be able to receive and process that HDTV signal and display it on on a high definition enabled screen. If all of this criteria is met the effects are just stunning.
But many TV stations are not yet broadcasting in HDTV format because it requires them to invest lots of money in new equipment to do so. They have to have enough of a market to make it worth their while. So in the meantime, we have some stations who do broadcast in HDTV and many who still just send out analog signals. However, all TV stations will have to comply with federal guidelines to be HDTV compliant within the next couple of years, so high definition TV is here to stay and will only grow in importance.
In the meantime, you have your choice of buying an HDTV "capable" "enabled" TV if you choose to buy a digital TV. An HDTV capable TV means that it can process digital signals (like DVDs) but in order to display the high definition signal it will require you to purchase an additional tuner which you can buy later at any time. On the other hand, HDTV enabled simply means that the TV is fully capable of displaying high definition picture and sound right out of the box. The choice is yours. Either bite the bullet and get the whole HDTV enabled enchilada now, or defer it a while longer until HDTV programming is more standard.
You also hear a lot about plasma and LCD screens these days. The screens we have been used to for years are called CRTs, and they have worked just fine, but the main advantage of plasma and LCD screens are that they can be very thin to produce, usually they are only 2-3 inches wide and that makes them able to be mounted in many places that CRT screens just can't go. If you need that kind of screen, just bear in mind that plasma and LCD screens are still very expensive. There is nothing wrong with just getting a good CRT screen or a rear projection screen in the meantime as they can be had for not a lot of money and can still produce a great picture depending on the manufacturer.
There is more to all of this telivision technology, but what we have covered should give you a good idea of what the different TV terms mean and arm you with enough information that you can now confidently choose the television that will work best for you.
How to choose HDTV Television
If you want to watch satellite programming you will need a tv that is at least HDTV ready. Your satellite service provider will supply you with an HDTV tuner. Even if you will not be watching much HDTV programming, there is still a huge benefit to watching a digital television. All HDTV and HDTV ready tv's contain upconversion circuitry that cleans up the picture with even non HDTV signals.
If you watch a lot of movies or dvd's, you might want to purchase a widescreen television. A widescreen tv has a 16:9 aspect ratio screen, as opposed to the traditional television screen with a 4:3 aspect ratio. You can enjoy watching movies on a screen shaped like a movie theater screen, and view non digital programming in a side cropped view, or stretch the picture to varying degrees to fill the screen. All HDTV programming uses the 16:9 aspect ratio.
The least expensive option is the good old fashioned CRT (cathode ray tube) television. It has been around since 1927, and it is the least expensive option. It is built around a single picture tube, and provides excellent contrast and overall picture quality. A higher end picture tube television will actually give a smoother appearance of motion than a flat-panel tv. The primary drawbacks of tube tv's are their immense weight (compared to newer technology), and the considerable depth of the sets themselves, both severely limiting your installation choices. Also, the largest tube television available is 36", so if you need a larger picture, you might want to step up to flat-panel television.
LCD and Plasma screens are the two options available in flat-panel televisions. Both are incredibly thin and lightweight, and can be wall mounted if you choose to do so. An LCD (liquid crystal display) contains thousands of crystals sandwiched between two glass or plastic plates, which are acted upon by electrical current, creating images on the screen. A plasma screen consists of thousands of pixel cells filled with gases that excite phosphors, producing light, and thereby your picture.
The weight of an LCD and a plasma tv are comparable, with the LCD models being slightly lighter in the 40" range. As the screen size approaches 60", the weight of the LCD overtakes that of the plasma screen. The display panel tends to last longer with the LCD than with the plasma models. LCD televisions are not vulnerable to burn-in, also known as image shadowing or ghosting, like plasma screens. Burn-in is essentially burned, or worn out pixels in a plasma screen that have been damaged over a period of time and retain color information from static images like network logos, etc... Plasma tv's tend to have more accurate color reproduction than LCD models, and are currently less expensive than a comparable LCD. While the largest LCD tv at this writing is 65", that is likely to change quickly as the technology evolves with the latest innovations in the computer monitor industry. The largest plasma screen television currently produced is the Panasonic TH-103PZ600U103", which boasts a massive 103" screen, and is expected to carry a whopping retail price of about $70,000 when is hits US markets in late 2006.
Remember the old, bulky rear-projection televisions that were almost a yard deep and weighed nearly as much as a VW Bug? Todays digital big screen tv's take up much less space, and a 60" television can weigh under 100 lbs. Digital big screens are capable of brightness that is unmatched by the older CRT televisions, and do not suffer burn-in like the plasma tv's. These digital big-screens also contains a consumer replaceable lamp that restores picture quality to its original brilliance. Prices for these sets are very reasonable, usually one half to two thirds the price of a similar sized plasma or LCD television. One disadvantage of the big screen tv's is still size; even with technological advancements, these models take more room for installation than the flat screen televisions, and are not practical for wall mounting. The ideal viewing angle is only achieved straight on, and in a seated position.
For a true movie theater experience at home, a front projection tv may be a good choice. This is a two piece system consisting of a projector and a screen. They offer picture sizes up to 300", and do not include any type of tv tuner, instead displaying signals from a satellite receiver or cable box. The best viewing experience with a front projection setup requires a fairly dark environment, and is definitely not for everyone. However, for cinema lovers, there is no better way to bring your favorite film to life. Pricing for good projectors starts at just under $1000, and screen prices vary according to size, with most models falling somewhere between $300 and $1500.
Whether you watch mainly sporting events, movies, or dvd's, a modern television can give new life to your favorite programming. As technology advances at an astonishing pace, prices for larger and more sophisticated television sets continue to come down. If you do some shopping online and find that you can't quite afford the tv that you want, save money for five to six months; no matter how much or how little you are able to save, chances are you will be able to afford the set you want as prices come down. Just don't blow the money you have saved - you might need to build a new room to house the larger set you will be buying in two years.
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