It's not always easy communicating these issues to stations, as their staff sometimes don't even realize that they transmit an OTA signal! This is especially true for companies like Rogers, where broadcast engineering is managed through a national department and very little is done locally.
I did a quick search and was able to find the station's phone number and email address. I would suggest giving them a call and asking for their broadcast engineering department/person.
In Kitchener, where I live, we have a local CTV station. I've had good success contacting their technical people whenever I've noticed something amiss or had a question. Sometimes the technical staff will provide your their direct-contact info for future reference (if so, please don't post that info here).
DMX 68' tower, HyGain HAM 5 rotator, Antennas Direct DB8e & C5, Channel Master 7777 preamp, Siemens surge protection. TiVo Roamio DVR