Screen Size: Finding the Sweet Spot

Whether you’re looking for a basic or high-performance TV, the biggest factor in your decision will probably be screen size. Consider how many people in your family typically watch at once and where you’re going to put your new set. Then pick the largest screen size that will fit comfortably into that space — and your budget. The sweet spot today, considering price, performance and the typical living room, is between 55 and 65 inches.

Screen size also depends on how close you sit to the TV. Basically, if you can see the individual pixels of the screen, you’re too close. A good rule of thumb is that you should sit at a distance from the TV that is three times more than the height of the screen for HD and just 1.5 times the screen height for 4K Ultra HD. In other words, you can sit twice as close to a 4K UHD TV.

Here’s a more in-depth guide to calculating the proper TV screen size based on the dimensions of your room, as well as the resolution of the TV.

If you have the opportunity, go to a store (and maybe bring your family) and look at the TVs. Even though 4K content is still rare, you may want that higher-resolution technology if you plan to sit close to a very large screen.

Bottom Line: Choose a screen size and resolution appropriate for the distance you will sit from the screen. We’d start at 55 inches.

Continue Reading

HDR: Get It If You Want the Most Colors

HDR is a new feature of 4K Ultra HD sets and it stands for high dynamic range, a reference to its ability to deliver more colors, more contrast levels and increased brightness. HDR is essentially an upgrade of the 4K, or Ultra HD, format (it is not applicable to 1080p HD sets). For this new feature, TV makers are christening new monikers for the sets to distinguish them from standard 4K Ultra HD TVs.

Ultra HD Premium is the name being adopted by UHD Alliance, an industry trade group. Dozens of companies are supporting this basic minimum specification for HDR compatibility, so you will see “Ultra HD Premium” on a growing number of sets this year.

Dolby Vision is a more demanding version of HDR, created and licensed by the folks that brought us Dolby noise reduction and surround sound. In theory, a Dolby Vision set has to meet a stricter set of criteria to display HDR content, but until we’ve tested a number of sets this year, how that translates to visible performance differences remains to be seen.

There continues to be some HDR confusion. Some TVs are Ultra HD Premium-compatible (like Samsung), others are Dolby-Vision-compatible (like Vizio and Sony) and some are compatible with both standards (like LG). Technicolor has brought its own standard to the market, called Technicolor Advanced HDR, which is expected to compete with Dolby Vision in the premium HDR space.

There’s not much HDR programming available, but it’s starting to look a bit better. There are a few dozen movies in the new 4K Blu-ray disc format,  with a growing number of HDR shows available via streaming services, like Amazon Prime and Netflix. Some new 4K Blu-ray players also promise to be upgradable to handle the new HDR discs, but check before you buy. Finally, some cable and satellite are getting their own form of HDR, called Hybrid-Log Gamma (HLG), so you should start seeing HDR pop up now and then for movies and even live TV.

Bottom Line: Don’t choose a set just for its HDR support because the standard has not yet been settled. However, if you want the best, buy an HDR set that is compatible with Dolby Vision, as that format seems to be gaining momentum.

Continue Reading

HDMI and Connections: Go for More

It may seem like an afterthought, but pay attention to the number of HDMI inputs a set has. Manufacturers looking to shave costs may offer fewer HDMI plugs on the back. These ports can get used up quickly: Add a sound bar, a Roku or Chromecast and a game console, and you’ve used three ports already.

If you have decided to take the plunge and get a 4K Ultra HD, make sure the set’s ports support HDMI 2.0 to accommodate future Ultra HD sources. Many TVs on the market have only one port that supports the 4K copy-protection scheme known as HDCP 2.2 (high-bandwidth digital content protection).

Bottom Line: Look for at least four HDMI ports; 4K shoppers should ask about HDCP- compatibility.

Continue Reading

LED and LCD Sets

The lion’s share of televisions today are LED LCD. These HD and Ultra HD sets use light-emitting diodes (LEDs) to illuminate the LCD screen and can be extremely thin. Many of these TVs can dynamically light up specific portions of the screen and dim other parts to better represent a mix of light and dark areas in a scene — a feature known as active dimming or local dimming. No-frills LED LCD sets can be had for as little as $200 for a 32-inch screen, while a top-of-the-line 90-inch model can go for $8,000.

Most LCD sets use LEDs on the edge of the screen. The better of these models support active dimming, but it takes some digital sorcery to do this by merely manipulating lights along the edge.

Full-array LED sets have light-emitting diodes directly behind the screen, in a grid of “zones” that can be lit up or darkened individually. Such an arrangement makes the backlight more precise and allows a more-detailed picture regarding contrast. Full-array backlighting was once reserved for top-tier models, but with more Ultra HD sets appearing at lower prices, this feature is becoming more common on modestly priced sets.

Another LCD technology, called quantum dots, is becoming more common, spurred on by the requirements of HDR to produce a wider array of colors and more brightness. An LCD that uses quantum dots basically has another layer, or added “rail,” of different size nanocrystal dots that light up when the LED backlight hits them. The result is a wider color spectrum and increased brightness.

Be aware that some brands offer confusing labels. Samsung’s newest sets are dubbed “QLED.” These are quantum-dot LCD TVs — not to be mistaken for OLED.

Pros: Wide array of prices, sizes and features; Some affordable Ultra HD 4K models; Bright screens visible even in a sunny room; Image quality steadily improving with full-array backlighting and quantum-dot technology.

Cons: Exhibits imperfections when displaying rapid motion, as in sports; Loses some shadow detail because pixels can’t go completely black (even with full-array backlighting); Images fade when viewing from the side (off-axis).

Continue Reading

OLED TVs

OLED TVs go one better than full-array LED-LCDs with a few dozen lighting zones. In place of a backlight, OLEDs use a layer of organic LEDs, controlled at the pixel level, to achieve absolute black and stunning levels of contrast. (Footage of fireworks against a black sky is a favorite demonstration of OLED technology.)

LG isn’t the only company actively pursuing OLED technology in large screen sizes, with new OLED models arriving from Panasonic, Philips and Sony this year. Most new models have Ultra HD 4K resolution, but a few, cheaper HD OLED models are still around. Prices range from about $2,000 for a 55-inch HDTV to $5,000 or more for a 65-inch Ultra HD 4K model.

Pros: Best TV picture, bar none; Colors truly pop, deeper blacks and better contrast and shadow detail than LCD TVs achieve; Retains image quality when viewed from the side.

Cons: Stratospheric prices; lower peak brightness than some LCD sets, uncertainty about how screens will fare over time, including whether they will retain “ghost” images (also known as burn-in) from displaying a static picture for too long.

Continue Reading

Curved Screens: Not Needed

Another innovation intended to attract shoppers’ attention is curved screens — mostly used for OLED TVs and 4K LCDs. The idea, say manufacturers, is to make the TV-watching experience more immersive.

However, not only do curved screens have no technical advantage over the other sets, but they actually have some distinct disadvantages. For one, the slightly curved aspect distorts the image and reduces the available side-viewing angles, thus limiting the best view to a few people sitting in a narrow, center sweet spot. LED models also are less likely to produce uniform brightness across the screen.

In addition, some testers, such as Consumer Reports, have reported viewer fatigue caused by the curvature. Conversely, other early owners have reported that after living with a curved screen, they don’t notice the difference or detect any distortion.

Curved models are more expensive: A 4K, 65-inch curved LCD model, for example, costs about $200 more than a comparable flat model. Samsung and LG are two supporters of curved screens, but other companies have eschewed them.

Bottom line: Curved TVs are primarily an extra-cost fashion statement, without delivering any appreciable benefit in image quality. Most companies are phasing them out.

Continue Reading

Smart TVs: Most Already Are

An increasing number of sets come with built-in Wi-Fi for connecting Internet-based services like Netflix for streaming videos or to run apps for watching special-interest programs, downloading on-demand movies, playing games or even posting to Facebook.

The interfaces are generally getting better. Vizio, LG and now Samsung use a handy bar of icons at the bottom of the screen. Roku offers its famously intuitive interface in budget TVs from Hisense, Insignia (Best Buy’s brand) and TCL. Google provides its Android TV platform to companies such as Sony and LeEco. While most smart TVs include the major services, such as Pandora, Hulu and Netflix, check to make sure the TV you buy has the options you want.

In the past, you could have bought a less expensive “dumb” TV and made it smart with a streaming device like the $50 Roku Streaming Stick. But nowadays, it’s hard to get a TV that isn’t smart, even if you’re going for a small bargain model.

Bottom line: Smart capability is becoming a standard feature in TVs, so it’s less and less of a factor in your buying decision.

Continue Reading

Contrast Ratio: Unreliable Numbers

The contrast ratio describes the range of brightness levels a set can display. Better contrast ratios display more subtle shadows and hues, and thus better detail. However, the way manufacturers measure such ratios varies widely. Indeed, the specification has been so thoroughly discredited that if a salesperson uses it as a selling point, you should shop somewhere else.

We use the same method for examining contrast ratios in all the TVs we test, so we can say roughly how well they compare to each other. Nevertheless, it’s still best to see for yourself how a TV displays shadow detail by finding a movie with dark scenes and seeing how well it reveals detail in the shadows of, say, a Harry Potter movie. Experiment with the TV’s brightness, sharpness and other picture settings before making a final judgment. (Hint: select “movie” or “cinema” mode on the TV.)

Bottom line: You can ignore manufacturers’ contrast-ratio specs, since they are not comparable across brands.

Continue Reading

Audio: Get a Soundbar

Even the finest, most expensive HDTVs have an Achilles’ heel: poor sound. It’s a consequence of the svelte design of flat panels — there’s not enough room for large speakers that produce full, rich sound. So, you have three choices: Use headphones (which can make you seem antisocial), buy a surround-sound system (which can be a hassle to set up and produces clutter), or get a soundbar.

Soundbars are popular because, for $300 or less, they can significantly improve the cinematic experience and yet be installed in minutes. Check out our top soundbar picks. Newer models are thin enough to fit under a TV stand without blocking the bottom of the picture. Most can also mount under a wall-hanging TV. Several companies also offer sound boxes or stands that can slide under a set.

Bottom Line: Movies and sports benefit from the addition of a soundbar.

Extended Warranties: Save Your Money

One of the biggest revenue generators for big-box electronics stores is the extended warranty. Why? Because they are so rarely needed, especially for a flat-panel LCD set. Most of the components in an HDTV are remarkably resilient; even the LEDs used to light the picture are virtually shockproof.

So, if you do get a lemon, it’s likely to be apparent immediately or at least within the first 30 days of ownership — a time period usually covered by a regular store-return policy. Beyond that, most manufacturers offer a one-year warranty. Credit card companies may offer additional automatic coverage on purchases, so check with your provider.

Bottom Line: Save your money and contact your credit card company to see if it has a price protection policy.

Continue Reading