The antennae will grab the This website will tell you what kind of antennae you should get based on your zip code. Read up on the different bands and distances. It will give you an idea of the number of channels you can grab for free. These are typically your local channels. http://www.antennaweb.org/Address.aspx
These website provides a do it yourself kit which includes everything you would need. It's also a pretty good resource. I think though I am gonna have a guy install it. http://www.dennysantennaservice.com/