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HDTV Buying Guide

Key features
Convenience features, value-added functions, and even the sound system are all factors to consider in your next TV purchase. Many TV makers differentiate their baseline models from step-up versions by including all kinds of addons, so check our list to help determine whether that "loaded" set you're considering really has the features that matter.

1. Onboard multimedia playback

What it is: Implemented via an onboard card reader and/or a USB port, it allows you to view photos/movies and listens to music residing on memory cards, thumbdrives, etc., directly on the TV. This minimizes clutter and enables basic media playback without a need for external A/V equipment. Some also come with basic editing functions, slideshow presentations and zooming capability for enhanced playback. This value-added feature is fast becoming a standard for many brands of HDTVs even for their entry-level 2009 models.

What it isn't: This is not a full-fledged media player that is capable of replacing your computer or standalone A/V deck. While some of the latest iterations support the newer HD encodings such as MPEG-4, H.264 and AVCHD, they are still overall less comprehensive than the above-mentioned. Additionally, there can be some limitations such as lower playback resolution, supported video frame rate and soundtracks.

2. Connected TV function

What it is: An extension of the above-mentioned multimedia playback, connected TVs are equipped with networking function and DLNA compliancy to stream files from home media servers either through wired and wireless means. With an Internet connection, some of them can also download and display free videos, photos and RSS feeds from popular portals such as YouTube, Flickr and Yahoo. The content available is country-dependent and varies even for an identical brand and make of TVs.

What it isn't: None of the existing connected TVs can deliver the full Internet experience similar to a browser. All the implementations have a different look and feel from the original Web site and have simplified user interface and search facilities that can be less effective in narrowing down specific content. Using the service via a virtual keyboard can be a steep learning curve for some users as well.

3. Integrated Digital TV

What it is: Integrated Digital TVs (IDTVs) feature integrated digital TV tuners to receive high-quality digital programs. The selection ranges from your regular local productions to Hollywood blockbusters in high-definition video and Dolby Digital surround sound. An electronic program guide (EPG) is usually included, too, providing a handy overview of the station's schedules though this is dependent on your operator. Some of the common digital broadcasting standards in Asia include Europe-oriented DVB-T, DVB-C and DVB-S.

What it isn't: This is not a substitute for analog broadcast since only a handful of Asian countries such as Singapore, Hong Kong and Korea offer digital TV services. Even if it's available in your country, there might be potential coverage as well as reception quality issues to resolve.

4. TV sound enhancements

What it is: Almost every TV sold today has stereo speakers powered by a 10W x 2 stereo amplifier. The more sound-inclined sets come with dedicated tweeters and subwoofers to boost treble and bass reproduction. Some new audio enhancement technologies to look out for include SRS TruSurround HD and Audyssey EQ. The former is designed to recreate multichannel surround effects, while the latter compensates for the limited TV speaker response via software equalization.

What it isn't: No TV can compete with a dedicated audio system. So even if your set has lots of watts and simulated surround sound, you should consider a home theater audio system for maximum impact. If you have such a system, the TV's sound becomes a moot point.

5. Multifunctional remote

What it is: Plenty of TVs now come with these versatile remotes that can control other A/V gear. Usually, they work with a cable or satellite box, and many can also command DVD players, VCRs and even home theater systems. If you like watching movies in the dark, you should look for a remote with backlit or glowing buttons.

What it isn't: Not every remote can control everything. Some, known as unibrand remotes, can control only the same brand of equipment as the TV itself. Most are preprogrammed with a set list of codes, and if the codes don't match your older or off-brand gear, you're out of luck. A few are learning models that can accept the IR codes from your other remotes, and thus control any kind of gear.

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