Thanks to all on this forum. I just completed install of a Channelmaster 4228 on my roof and the HDTV I get is fantastic. I live just south of Bethlehem, PA. Roxborough is 37.5 miles for Philly stations. My goal was Superbowl in true high def. Its a reality.

I followed many of the recommendations on this forum. I'm ordering a rotor tonight so I can get LV, Scranton and maybe NYC channels.
Attached is a picture of my new toy. Getting it up there was an adventure. The wall mount brackets didn't seem solid enough, so I doubled them up. I don't know why I waited so long.