As many others here have said, you can get most of the local channels with a cheap antenna. I went a little overkill, and installed a 7-foot antenna in my attic with a rotator. I can punch in the degree of a transmitter for the station I'm interested in and it'll move the antenna so that it points to it, and with a booster I can pick up channels from NoVA, Charlottsville, Virginia Beach, and parts of North Carolina, but these are the outliers and if the atmospheric conditions aren't right, it comes in and out, which can be quite annoying...

...but yes, a cheap antenna should do you well for the local channels.