Thank you all for your responses and requests for additional information.
Our two TVs are: Panasonic CT-20G8G (an old style TV that protrudes to the rear); and an Emerson flat screen LC320EMX.
My description of the antenna height was a bit flawed. As I mentioned, we are on a hill. The high point is to the northeast, and it slopes down to the southwest. Therefore, our building pad is dug into the hill, and although our antenna on the northeast corner is 10' off the ground, it's only 4' above the natural terrain.
I did some "what-if's" on the TV mapping section, and 10' above the natural terrain seems to yield the best lines on the map. Both higher and lower result in dimmer lines. The correct report for 10' above the natural terrain is
http://www.tvfool.com/?option=com_wr...1dda460396fcb4. The correct report for our current reality (4' above the natural terrain) is
http://www.tvfool.com/?option=com_wr...1dda2db70c8d9a.
The two coax cable ends that were going from the gable end of our house into the satellite dish --- were there two cable ends because there were two TV's???
My husband will need to get up in the attic and determine what is going on with the cables. Whatever connectors the Dish guy put in place, we will replace with something generic as mentioned. I'm assuming that we need to have one coax cable going from the antenna to the furthest away TV (the one that needs a converter box), with a T-connection midway to go to the digital TV in the middle.
We will be returning the ClearStream antenna to Best Buy. Although it may be a fine antenna, we don't have enough time to find out before our 14-day return deadline. I will plan to contact Steve at Antennas Direct on Monday for additional advice.
If anyone has new insights from my additional information, I'm all ears. I feel much more confident now, after your comments, questions, and offers of help. Thank you!
Marian