This question of , can a Antenna and active - cable Tv , internet cable , cable phone service , on the active cable be combined on to the same cable line is continually ask and the answer is , No , No and No. However coax lines in the house that are not connected to any type or kind of active cable service can be used. Read previous posts and you will see. The Tv transmissions are Strong at your location. Metal , concrete and thick bricks reduce and block Tv transmissions. Is the house wrapped with any type or kind of metal such as but not limited to , metal siding , stucko with stucko Wire?? Are the walls made of poured concrete?? Is there brick from ground to roof?? Does the house have solar panels on the roof?? Here are indoor antennas that should work if the house is a wood frame house with wood siding or vinal siding. ,
http://forum.tvfool.com/showthread.php?t=233 . Aim the indoor antenna at about 344 degree magnetic compass , here is how to aim Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. 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