Use this site to select an antenna and see what channels you can get:

http://www.antennaweb.org/aw/welcome.aspx

 

Another good site:

http://www.fcc.gov/mb/engineering/maps/

This is from cnet.com:

What about sound?
Much like the DTV picture, DTV sound is not subject to the interference and static common with analog TV broadcasts. It comes in crisp and clear along with the picture, as long as you have good signal strength (poor signal strength can result in dropouts). You may have also read that DTV offers surround sound, just like DVD movies, and that's often true. The catch is that you'll need a special type of connection, called a digital audio output, to send that surround sound to a surround-speaker system. Most DTV converter boxes lack such a connection, so they can't provide surround sound--just standard stereo or simulated surround like Dolby ProLogicII.

 

Another good site:

http://www.fcc.gov/mb/engineering/maps/

This is from cnet.com:

What about sound?
Much like the DTV picture, DTV sound is not subject to the interference and static common with analog TV broadcasts. It comes in crisp and clear along with the picture, as long as you have good signal strength (poor signal strength can result in dropouts). You may have also read that DTV offers surround sound, just like DVD movies, and that's often true. The catch is that you'll need a special type of connection, called a digital audio output, to send that surround sound to a surround-speaker system. Most DTV converter boxes lack such a connection, so they can't provide surround sound--just standard stereo or simulated surround like Dolby ProLogicII.

Well, the type box you recommended, and it is working fine. Free now on my TV is free, the picture quality is unchanged on my old set, but I get dolby digital sound through big speakers and sub.

 

I installed one of the small round 'boat' type disk antennas several years ago and it's provided us with great reception. We pick up more stations after the digital conversion. The disk is about 18" diameter and 3" thick so it's easy to install.
Got ours at Radio Shack.

 

2cool !