Start here:
http://www.digitalhome.ca/forum/forumdisplay.php?f=81
I'm new to this, but I bought the following antenna here in Calgary, hooked it up and placed it in my attic. I get clear reception for CTV HD, Global HD and decent reception for CBC and some other channels. Hooking it up is as simple as hooking up standard cable television. One end to the antenna, one end to the TV. Assembling the antenna was the most difficult part and even that wasn't too bad.
http://www.onesat.ca/4-bay-Hi-Defini...tv-antenna.htm
Use this to determine what channels are close by and what direction you should point the antenna. The antenna picks up UHF stations and possibly some VHF stations.
http://www.tvfool.com/index.php?opti...id=13&Itemid=1
I'm in the deep southeast so if you're anywhere in the inner city you should be able get some good reception. The HD is awesome cause it's clear, legal and free! Perfect for the Olympics.