Thank you for your encouraging comments. I also learned a lot about indoor reception from this experiment.
Trip in VA, who runs the rabbitears.info web site and now works for the FCC, had an even more difficult time with reception of local signals. When he was living in Chattanooga he had to put his antenna inside a trash can to reject multipath reflections.
Background information on this technique:
http://www.avsforum.com/forum/25-hdt...l#post21358820
http://forum.tvfool.com/showpost.php...27&postcount=7