Why is rescanning for digital channels so important?
After hooking up a converter box to your TV set, or installing a new digital television, you will need to scan (also known as “auto-tune”) for new channels to ensure you receive all of the digital stations broadcasting in your area. While some boxes do this automatically, you may need to select scan manually. Since new stations may become available or existing digital stations may move to a new channel, you should consider rescanning on a periodic basis to make sure you’re getting all of the digital programming available. In addition, some stations will be providing more powerful digital signals, so you might pick up a channel you were not able to get previously. Go to dtv.gov and select reception maps to check for the DTV signals that are available at your location.
