In the attic I suggest Antennas Direct DB 8 UHF antenna and a Antennas Direct C 5 VHF antenna. The C5 comes with a UHF VHF combiner. Connect a Antennas Direct CPA 19 preamp to the Output Of The Combiner in the attic. Mount the antennas as high as possible in the attic. Mount the antennas so that each antenna can look at the Tv stations without being obstructed by the other. Aim the antennas at about 17 true , 13 degree magnetic compass. Here are places to buy Tv antennas and etc. ,
http://www.amazon.com ,
http://www.solidsignal.com ,
http://www.antennasdirect.com.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 This set up will provide signal to 2 Tv's. with 2 way splitter. A common simple passive splitter is what is used.