For reception of the VHF low band channels 2 thru 6 and VHF high band channels 7 thru 13.
WMEB-DT REAL VHF channel 09 , virtual number (12.1-2) PBS.
WABI-TV REAL VHF channel 13 , virtual number (5.1-2) CBS and CW.
WLBZ REAL VHF channel 02 , virtual number (2.1-2) NBC and Local Weather.
WVII-DT REAL VHF channel 07 , virtual number (07.1-2/2) ABC and FOX / MyNetwork.
Above the roof install a Antenna Craft CS600 VHF antenna with a Antennas Direct CPA-19 preamp , aimed at about 40 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
For 1 Tv connected use no splitter.
For 2 Tv's connected use a , HFS-2D , 2 way splitter.
For 3 Tv's connected use a HFS-3D , 3 way splitter.
Buy the HFS splitters at ,
http://www.hollandelectronics.com or
http://www.solidsignal.com.
Here are some but not all above the roof antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html ,
http://www.ronard.com.
Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box.
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.antennacraft.net ,
http://www.amazon.com.
As always , trees and tree leaves do a real fine job of reducing or blocking Tv reception and so do buildings and other obstructions.
It is best to install the antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception.
The Tv/s Must Channel Scan for the Broadcast Tv Stations/channels , sometimes named the 'Air Channels' or 'Antenna Channels' in the Tv setup menu because the Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.
DO NOT channel scan for cable tv channels.