Install a
http://www.channelmasterstore.com , CM3000A antenna above the roof , here are roof mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html . Here are places to buy antennas and etc. ,
http://www.channelmasterstore.com ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.starkelectronic.com ,
http://www.3starinc.com. The CM3000A receives all directions and is not a directional antenna. A note about the directional antennas that the others will recommend , directional antennas receive the best in one direction , the forward direction. Here are pictures of directional antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. . Your location has digital tv stations all around the compass. A directional antenna or even two directional antennas Will Not receive all those stations. The other option is to use a antenna rotor with a directional antenna. A rotor Will Be a source of conflict with more then one tv connection when other tv watchers want the antenna pointed some where else. I recommend a CM3000A , it receives all directions.