All this week, local major networks will be testing the digital conversion across the United States.
If you are not sure if your televisions will work after the conversion, this week is the test.
Check with your local stations to find out the exact date and times of the test. During this time (anywhere from 5 to 30 minutes), those stations will not be broadcasting in analog.
As a reminder the transition takes place in February 2009, just a few months away.