If your apt. is close to or on the end of the building the I suggest a Antenna Craft U4000 UHF antenna aimed at about 233 degree magnetic compass. The Tv stations in the green and yellow will received. . Read and understand about , REAL Digital Broadcast Tv Channels , Virtual Digital Broadcast Tv Channels , Analog Broadcast Tv Channels ,
http://forum.tvfool.com/showthread.php?t=695 , Here is how to aim Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html