Top Product Ratings:  TVs  |  Digital Cameras  |  Computers  |  Cell Phones  |  Printers  |  Camcorders  |  Blu-ray & DVD Players  |  MP3 Players
| More

March 6, 2008

Exclusive: First tests of digital TV converter boxes

Magnavoxtb100mw9dtvblog_2 With the digital TV transition less than a year away, digital-to-analog converters have started showing up in retail stores. These set-top boxes convert digital transmissions pulled in by an antenna into analog signals that can be accepted by an older tube TV and other sets that don’t have a built-in digital tuner.

We tested three of the first digital-to-analog converters to hit the market: the Magnavox TB100MW9 ($50 at Wal-mart), Insignia NS-DXA1 ($60 at Best Buy) and Zenith DTT900 ($60 at Circuit City). If you buy any of these boxes, you can use the $40 coupon offered by the government, reducing your out-of-pocket cost to $10 or $20. (The Magnavox is pictured above. You can click on it for a closer look.)

[Feb. 14, 2008 UPDATE: We've further reviewed these digital TV converter boxes and have posted more information about them in our report, "Digital TV converter boxes: First Look," on ConsumerReports.org. —Ed.]

These converters did what they're supposed to—they provided access to free, off-air digital TV programs when we connected them to a rooftop antenna at our Yonkers, NY, lab. In addition, we tested to see how well each box performed when we lowered signal strength to marginal levels. All three boxes did an equally good job with weak signals, comparable to several late-model 42-inch flat-panel HDTVs we tested for comparison. (One important note: While the boxes can pull in both HD and standard-def digital channels, they'll convert HD programs to standard-definition analog.)

Picture quality from all three converter boxes was decent and should be fine on a relatively small-screen set. It's likely to be better than analog broadcasts you're watching on that same TV now. It won't match what you can get with a good digital TV, but the difference in quality isn't that great that you should buy a new TV unless you're ready to change for other reasons.

For an extra $10, the Insignia and Zenith boxes provided a slightly better image than the Magnavox and some added features that make them more convenient to use. The Zenith and Insignia performed closely overall, but the Insignia had a few quirks in picture quality when we used the composite-video output, so we would opt for the Zenith.

If you're in the market for a converter box, stay tuned for our full test report on these three models, which we expect to post next week on ConsumerReports.org.

—Eileen McCooey