Article was originally published in February 2008 for Consumer Reports.

The impending switch to all-digital broadcast TV will be a step forward, but it could be bumpy for many

Over the next year or so, you’ll be hearing a lot about the digital TV transition. Here’s what you need to know: On Feb. 17, 2009, broadcasters must shut down their analog systems and transmit only digital TV signals to comply with the Digital Television Transition and Public Safety Act.

While that sounds cataclysmic, the change will affect only the way free TV will be broadcast over the air, to a rooftop or indoor antenna. All TVs (no matter what type) connected to cable, satellite, or one of the new telephone company fiber-optic services should continue to function (though you might have to get a set-top box for cable).

A TV connected to an antenna might or might not work after Feb. 17, 2009. That depends on the type of TV.

Which TVs will still work with an over-the-air antenna?
A TV with a built-in digital tuner (called an ATSC tuner) will be able to get free over-the-air digital programming, with no action on your part. Your TV probably has a digital tuner if it falls into one of the following categories:

It’s a big-screen, high-definition TV bought within the last few years. The government has required sets with screens 35 inches and larger to have a digital tuner since July 2005, and sets 25 inches and larger since March 2006. Those sets are sometimes called integrated HDTVs.

It’s a new TV purchased this year. Since March of this year, all new TVs regardless of size have been required to have a digital tuner. Most TVs bought within the last few months should be OK, whether they’re high-definition sets or the new digital standard-definition TVs. (Retailers are allowed to sell off their existing inventory of analog TVs that do not have a digital tuner. They should be clearly marked as analog sets, but ask the salesperson to be sure.)

Which TVs will no longer work with an over-the-air antenna?
A TV that has only an analog tuner, called an NTSC tuner, will not be able to get free over-the-air digital programming. Your TV does not have a digital tuner if it is one of the following:

• An older picture-tube TV that is not a high-definition set.
• An HD-ready TV purchased several years ago.
• A new type of set, called a monitor, that has no built-in tuner of any kind.

(If you’re unsure as to whether or not your TV contains a digital tuner, consult the product manual or call the manufacturer’s customer service line.)

For the entire article, click here.