For reception of the Tv stations/channels to the , north/west , west , south west , south.
In the attic install a Antennas Direct DB4e UHF antenna aimed at about 260 degree magnetic compass.
And also install a Antennas Direct C5 VHF antenna aimed at about 200 degree magnetic compass. The C5 comes with a combiner to combine the DB4e and the C5 on to one coax.
Here is how to aim the antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Also install a Antennas Direct CPA-19 preamp connected to the output of the combiner.
Most attics have electric power , so install the preamp the preamp power supply and preamp power inserter/injector , all parts of the preamp , in the attic.
Here are places to buy antennas and etc.
http://www.antennasdirect.com ,
http://www.solidsignal.com ,
http://www.amazon.com.