New HDTV Ratings: LCDs with LED backlights, 240Hz; thinner plasma sets

We've just posted the latest TV Ratings (available to subscribers of ConsumerReports.org), and once again we find that an overwhelming majority of the sets can display excellent or very good picture quality when showing good-quality HD content. But sound is getting worse in some LCD and plasma TVs, perhaps as a result of their ever-slimming profiles. Along with some ultra-thin LCD sets, we tested several Samsung plasma TVs that are just 1.5 inches deep.

Some newer LCD TV technologies, such as LED backlights and 240Hz refresh rates, are spreading to more sets. There are different approaches to each of these technologies, and our tests show that the effectiveness varies both by technique and brand.

In addition, more sets of both types now offer extra features, including access to online news and entertainment content. Some sets provide either built-in or optional wireless connections to home networks, a real convenience for those who don't have an Ethernet jack near their TV. Also, some sets now have integrated iPod docks, USB ports or SD card slots for playing digital music, photos and videos directly on the TV.

The most feature-laden sets typically command a premium, but the Ratings also include some modestly priced models that should appeal to budget-conscious shoppers, including a recommended 42-inch LCD TV for just $650 and 42-inch plasma model for $700.

Even though our newest TV Ratings have just been posted, we've already started testing 16 new models. Among the highlights: a super-slim 1-inch plasma from Panasonic; a Mitsubishi LCD set with a new version of its "sound-projector" surround-sound audio system; and Sharp's first mainstream model with a full-array LED backlight. We expect to have the results for those sets available in about four weeks. —James K. Willcox