How to give the gift of Home Theater
by Vincent M.
The digital revolution of home electronics is upon us, and with the country television over-the-air broadcasts going digital early next year, it has never been a better time to find the perfect Home Theater.
Which Home Theater system is right for you and your needs? Only you can answer that question, but we can help you make a more informed buying decision. Get ready to get smart on home theater products!
What Is a Home Theater?
Generally speaking, a home theater system is a combination of A/V electronics components designed to recreate the visual and sound experience of watching a movie in a theater. When you watch a movie or television program on a digital home theater system you are more involved in the experience than when you watch programming on an ordinary television.
On a fundamental level, a digital home theater system consists of a wide-screen digital standard definition (SD) or HD television, HD receiver, multi-speaker surround-sound system, and 1080p HD (Blu-ray) DVD player. The right combination of components can turn your ordinary analog experience into a digital A/V feast for the eyes and ears.
Things to consider when shopping for a home theater system:
Selecting a Television for a Home Theater
The largest and most visible variable in any home theater system is the television. Whether it a large-screen, direct-view (cathode ray tube) television, a front or rear projection television, or a wide screen HDTV, they all have different price-points depending on size and screen resolution. With the coming move to an all digital broadcasting format next year, direct-view televisions will fast become obsolete. Yes, you will be able to purchase a decoder that will allow you to view digital content on a direct-view television, but you will not be able to take full advantage of digital content offered by cable and satellite providers; nor will you be able to fully appreciate digital DVDs. The largest direct-view television screen you can purchase today measures 40 in. diagonally, though you might be more content with a 27 in. model like the Sansui 27 in. CRT
w/Digital Tuner.
Front & Rear Panel Televisions:
Front and rear projection televisions were all the rage, and indeed they were the only option for the last decade if you wanted a large screen size. Gone is the cathode ray tube in the projection screen. There are a number of different types of rear-projection televisions; they include: Digital Light Processing (DLP), which uses one or three digital micro-mirror devices (DMDs) to create all of the pixels that make up the image. Liquid Crystal Display (LCD), which directs light through liquid crystals and magnifies it for projection. Liquid Crystal on Silicon is like a cross between DLP and LCD.
If you're in the market for a rear-projection television,
consider screen size, resolution and quality. Even a top-of-the-line picture can look unclean on a bad projection screen, so be sure to pay attention to screen material. Better light-and-dark contrast can be had from darker screens, which makes them a better choice, and screens made with anti-glare material should be considered if your new purchase is going to be in a room where natural light is a factor. Screen sizes up to 53 in. are common in rear-projection televisions.
Need a much larger screen size?
Consider a front-projection television where screen sizes up to 200 in. are not uncommon. This is due to the fact that the components do not have to be packaged together and you are limited only by the size of the wall or screen onto which you want to project the image, as well as how far you place the projector from the screen.

The downside of front-projection televisions
is that they only work optimally in a darkened room just like a traditional movie theater projection setup. As a result, front-projection sets should really be confined to a separate, specially designed home theater area, rather than a family or living room. Since front projector sets are specifically designed for viewing movies, they usually don't have a built-in analog or digital
television tuner, which of course prevents them from receiving television signals themselves. Front-projection systems use the same type of technology as rear-projection TVs. Projectors designed specifically for home theater use can be quite expensive, like the
Sony 720p HD Home Entertainment Projector ($1299.99).
Flat Panel Screens:
Flat panel screens are growing increasingly popular not only because of the versatility, but also because of their thin, lightweight size, superior resolution, sharpness, brightness, and improved darkness. Also, because they are not susceptible to glare, they can be placed in any room of the house.
The two primary types of flat-panel televisions are plasma and LCD. Plasma televisions create pictures with an array of cells that are a lot like fluorescent lamps. Flat-panel LCDs are similar to the screen of a laptop and desktop computer flat-screen displays.
Plasma and LCD displays have great picture quality and used to suffer from a lack of good black levels. The latest generation of LCDs has really improved. While plasma screens are limited to 55 in., LCDs have now reached 65 in. (
Sharp 65" AQUOS LCD Television - $4749.9). This type of television used to be rather expensive, but as the sets have increased in popularity, the prices have dropped markedly to below 300.00;
Audiovox 15 in. LCD - $299.99.
Like direct-view televisions, plasma displays are susceptible to burn-in, wherein an image left on the screen for too long is burned into the screen; conversely LCDs do not suffer from this malady.
Analog TV (SDTV) vs. Digital TV (DTV) vs. High Definition TV (HDTV):
Over the past decade or so, digital television (DTV), whose video signal consists of bits of data, that is, sets of 1s and 0s, has taken its place alongside analog television. The advantage of sending information digitally is that it cannot degrade, so the signal will be exactly the same after transmission as it was before. Because of this stability, digital signals translate visual information much, much more exactly than analog signals, thereby allowing digital signals to carry much more detail than analog signals. As I mentioned at the outset, digital signals will replace analog at the beginning of next year, not only because of the better quality signal, but also because digital signals can obtain much higher resolutions that analog which is limited to 480 horizontal scan lines of picture information.
It is important to note that general U.S. broadcasting is in transition to DTV (780p), not to HDTV (1080i & 1080p), which offers the highest quality of DTV. During and after the transition to DTV, broadcasters will transmit signals in SDTV, DTV, and HDTV; indeed many broadcast and cable stations are already offering HDTV channels for those who can take advantage of them. Any new television set you buy, be it direct-view, plasma, LCD, etc., will be able to read a DTV signal, but unless it's an HDTV set receiving an HDTV signal, you will not be able to take advantage of the higher 1080p /1080i resolution(s).
HDTV comes with a high price tag when compared to a SDTV or DTV set, however the picture and sound quality might be worth it to you. However, take heart, prices are dropping and you can expect to shell out anywhere from $900 to $5,000 for a high quality HDTV LCD or plasma television, and $7,000 to $16,000 for an HDTV front-projection set.
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