Consider a combination antenna like this,
http://www.solidsignal.com/pview.asp...0Antennas&sku=
Mounted on the roof and aimed a little east of due north you should be able to receive a fairly full line up.
If you were avid TV watchers, wanting every possible station, the expense of a rotator may be justified, but to see much to the south you would need a larger, deep-fringe antenna and a preamplifier.