Many , Many , Many , Many , Many , Many , Digital Broadcast Tv stations/channels will be received.
Above the roof install a , ANT751 antenna aimed at about 266 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
http://www.solidsignal.com , has the ANT751 with a J type antenna mount , low dollars.
A coax from the antenna to the location of the home runs in the basement.
Install a Channel Master CM3418 distribution amplifier at the location of the home runs in the basement.
Connect the coax from the antenna to the input of the CM3418 distribution amplifier.
Install 75 ohm terminators on the unused output ports of the CM3418 distribution amplifier.
Here are examples of 75 ohm terminators ,
http://www.amazon.com/Type-75-Ohm-Te.../dp/B000AAN76Y.
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 ANT 751 antenna at a location that has the least amount to no amount of obstructions in the directions of reception , north west , west , south west , south , south east.
The Tv/s Must Channel scan for the Digital Broadcast Tv Stations channels , sometimes named the 'Air Channels' or 'Antenna Channels' in the Tv set up 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.