Here's another post on TV Fool that might be of interest to you, BigBean:
http://forum.tvfool.com/showpost.php...6&postcount=75
What antenna are you using now? Generally speaking, a higher gain (larger boom & elements) with a better commercial grade preamp/amp might give you a more reliable viewing experience.
Check out this preamp he mentions in his above post. Several others on TV Fool have given it "thumbs up."
http://www.kitztech.com/KT200.html
Hopefully, you'll find a better solution to your issue. Let the forum know how you come out with all this.
Thanks and best July 4 holiday to you!