90% of the coat-hangar designs on YouTube, the Make: design, and others end up with too-small elements spaced too close together. Plus, bow-tie arrays will not have much response at low-VHF channels such as 2. Do go and register with the DigitalHome site, then check out the
Over-the-Air Digital Television forum. There's an antenna selection chart available to members that can help you narrow down choices and there should be a thread for your area in the OTA Reception Results sub-forum.
You are a year from analog shut-down in Canada. The folks at that site are keeping a very close eye on what OTA will be available post-transition.