Jeffhs and Hifirob2: In the brief time I was using my DTV box for OTA reception I noticed some good/bad versus the analog signal. I could receive more stations on analog, however some were pretty snowy. Now with the DTV the reception was great, but I had less channels.... because as Zenith2134 mentioned, the signal is either there or it's not... One other thing. I'm unlucky enough to be in the Westward flight path from BWI airport. I'm probably a good 25 miles away from it, and the planes generally have some altitude already, however I noticed as they passed over my house they absolutely -wrecked- the signal on the DTV stations that had somewhat weak signals.
Made trying to watch RTN a challenge.
