The television transmissions are VERY STRONG Do Not use any type or kind of amplifier. Here are indoor antennas to use ,
http://forum.tvfool.com/showthread.php?t=233. Point the Tv antenna at about 40 degree magnetic compass. Here is how to aim Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html The transmissions are so strong that I recommend variable attenuator , Antennas Direct , model number 1296F , to Dial Down the signal strength and the multipath signal strength.