There are opinions , and then there is the truth. GUM is telling you the truth , cable Tv is a Closed System the signals are transmitted With In the cable lines and uses the same frequencies as broadcast television and police and fire and airport and other communications. Connecting the Broadcast VHF and UHF channels from the antenna in with the same channels that are being used in the cable system ~~ well your Tv tuner will not like it. And the cable system signals will go through the antenna system coax to the antenna and be transmitted by the antenna. It will be Zero fun , so use two separate coax systems to prevent from happening. DO NOT connect active cable and antenna on to the same coax at the same time. The Winegard HD7694P VHF high band / UHF combo antenna pointed at about 146 true , 161 degree magnetic compass and you will receive the American digital stations and Canada digital stations. I recommend mounting the antenna on the roof for strong reception of the American and Canada stations. Here is where to buy the HD7694P antenna in Canada ,
http://www.canadapost.ca/shopper/sea...negard+hd7694p