How time flies. It seems like we’ve been talking about the transition to digital terrestrial television broadcasting forever—waiting for stations to light up the transmitters, watching as more and more high-definition programming appeared on our TV screens, and shopping for a new flat-screen HDTV for our family rooms.
Tips for selecting and installing a front-projection screen.
What’s keeping you from taking the front-projection plunge? Is it a belief that projection systems are still only for the rich and famous, consisting of $15,000 projectors, movie-theater-sized screens, and elaborate masking systems, controlled by advanced touchpanels? The entry-level projector roundup on page 38 of this issue is proof that there’s a 1080p projector to suit almost any budget, and the same is true for theater screens.
In the November 2007 issue, I tested 74 HDTVs for their ability to process 1080i signals, the highest resolution standard found on most of the broadcast and cable networks. A number of the remaining HDTVs to be introduced in 2007 arrived too late for our November issue. We decided to follow up with some more displays. Due to space constraints, this article will refer to previous articles more than we normally do. On the bright side, all the articles mentioned (including the November 2007 test) are available on this site.
There has never been a greater abundance of choices, from flat-panel TVs to portable media devices. However, figuring out what to buy is more complicated and confusing than ever. It's not just the myriad of choices in any given product category that's baffling, but also the uncertainty over whether it's going to be obsolete this time next year, or even next month. So, how can you make the best decisions and future-proof your A/V purchases?
This time last year, we tested 61 2006 HDTVs to learn how they process all the detail contained within 1080i, the most common high-definition broadcast format. It's the highest resolution format the majority of HD broadcasters and cable channels use, including CBS, NBC, CW, HBO, and Showtime. The results of our 2006 tests were quite disappointing; less than half of the HDTVs were able to properly process the interlaced broadcast signal to the TV's native, progressive resolution. This year, we have expanded our testing to include 74 HDTVs that range from 19 to 67 inches. We have added a new test for 1080p displays to judge their resolution with motion as compared to their stationary resolution. This test illustrates how all HDTVs lower the amount of detail you can see when the camera is panning or where there is action in a scene, such as on a football field. More on this later.
What is an HTiB?
What exactly is a Home Theater in a Box, or, as those of us who prefer to use acronyms rather than real words call it, an HTiB? Before you guffaw and wonder what kind of an idiot put this bit of advice together, give this question a chance to sink in. Now let's consider just how difficult a creature this HTiB thing is to pin down.
Speakers are available in a bewildering variety of styles, sizes, and technologies. On the technical side, the vast majority are conventional box designs using one or more drivers—most commonly a single cone woofer for the bass and midrange, a single dome tweeter for the treble, and a crossover network to divide and route the appropriate frequencies to each. The speaker cabinet, or box, which can be either a sealed or ported design, is not merely a cosmetic touch; it is a key element in the design. Without a properly designed cabinet, even the best conventional woofer would simply flap in its own breeze and produce little or no bass.
Since front projection has become a much more affordable proposition, its popularity has swelled in recent years and continues to be a growth category in the industry.
Two (And A Half) Basic Flavors
I'd love to regale you all with stories of the CRT front projectors of yesteryear. These beasts were bigger than a VW, but cost a lot more. But that's not why I'm here. Thanks to the digital revolution, high quality front projection is now as affordable as premium rear projection TV in many cases, and less expensive than many premium flat screens.
You want the big screen experience. That means a projector and, obviously, a screen. Yes, you could just aim the projector at that white wall, or a neatly-pressed sheet. You'll get a picture, and the video police won't show up to drag you away to an ISF re-education camp.
General and Practical Rules Of Screen Size
The original rules of thumb on screen size were concocted during the era of CRTs and scan lines and have been massaged somewhat since, and will be massaged further in this era of 1080p.
Big screen TVs ain't what they used to be- and that's a good thing. The CRT rear projection TVs of yesteryear were big. They still aren't flat screens, but digital technologies have shrunk RPTVs from front to back and dropped their weight in half. In addition, while CRT RPTVs die an irrevocable slow death from day one, digital RPTVs are lamp-based. When the lamp burns out, you buy a new one for a few hundred bucks and your TV is as good as new.
Essential Audio Features Basic Surround Decoding
Today's AVRs feature a ton of surround decoding features from Dolby and DTS, from basic 5.1-channel surround decoding to several ways of decoding stereo into 5.1-channel surround, or beyond.
General and Practical Rules Of Screen Size
The original rules of thumb on screen size were concocted during the era of CRTs and scan lines and have been massaged somewhat since, and will be massaged further in this era of 1080p.
They're both sexy slim, and can hang on the wall. But in spite of the similar physical profiles these two technologies are very different, and each has its strengths and weaknesses and they're not necessarily the ones the sales guy at the Big Box Store will tell you about.
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