Wow, thanks so much! Very helpful! I didn't know Best Buy sold OTA antennas but it would make sense that they might know of installers. I'll check.
Here's my results from TV Fool:
http://www.tvfool.com/?option=com_wr...8e03bb6a6ccc01
I know it says an indoor antenna is likely sufficient, but I haven't found that to be the case. There is metal flashing around our house, and we live in the river valley. The roof top is wired with coax and power, and it's a flat roof, so it's easy enough to get up there and install.
And I have this antenna:
http://www.amazon.ca/RCA-ANT751R-Out...ywords=antenna