I had the guys come and install an HD antenna on my flat roof in the west end of Toronto a few days ago. It worked as advertised with 31 channels coming through most of the time and unlike cable it is a one time fee. In retrospect, I should have asked them to take a camera photo of the installed antenna to demonstrate the sealing technique on the roof at the completion of the installation since it is a high roof that I don't expect to be on top of any time soon. The service was efficient with minimal mess. I think everyone should get themselves one so long as their site lines are good. It will pay for itself many times over in place of basic cable within a year.