How many floors above ground 1 , 2 , 3 ? How many tv's to connect? The Tv transmissions are strong at your location , try one of these indoor antennas with one tv that is located above ground. The tv must be a digital tv or have a digital converter box connected to a analog tv.
http://forum.tvfool.com/showthread.php?t=233 . And understand this about Real and Virtual digital Tv Channels.
http://forum.tvfool.com/showthread.php?t=695