To do it 1 time and receive , Many , many , many , many , many , Digital Broadcast Tv stations/channels.
Above the Peak Of The Roof in such a manner that reception is not impeded or blocked by the roof and house in the directions of , south east , south , south west , north west.
Install a Winegard HD7084P All channel antenna aimed at about 168 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
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Here are some above the roof antenna mounts.
http://www.ronard.com/909911.html.
Install the 5 foot tripod antenna mount. ronard (911)
http://www.ronard.com/34424560.html.
Install the , ronard (4560) , eave antenna mount .
http://www.ronard.com/ychim.html.
Measure the chimney and install a , ronard (2212) , ronard (2218) , ronard (2224) .
Buy the ronard antenna mounts at solidsignal by typing , ronard (x) , in the solidsignal search box or buy from ronard.
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Here are some places to by antennas and etc. .
http://www.solidsignal.com.
http://www.amazon.com.
http://www.winegardirect.com.
http://www.ronard.com.
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For 1 Tv connected use No Splitter.
No antenna system amplifier.
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Yes is Ok to connect the coax from the HD7084P antenna to the connection outside the house.
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As always , trees and tree leaves , plants and plant leaves , have a Negative effect on , OTA=Over The Air , Broadcast Tv reception and so do buildings including your own roof and house and other obstructions.
The Best Practice is to install a Broadcast Tv receiving 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 Must Channel Scan for the Digital Broadcast Tv stations/channels , often 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.
Some Digital Tv's will Automatic channel scan for cable tv channels.
DO NOT channel scan for cable tv channels.
Go into the Tv Setup Menu and select 'Air Channels' ~ 'Antenna Channels'.
Scan for 'Air Channels' ~ 'Antenna Channels'.
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To do it 1 time and receive , NBC , FOX , and some other channels.
Put a TERK HDTVi (not HDTVa) indoor antenna in a ~south~ facing window.
Aim the HDTVi antenna at about , south.
Here is how to aim indoor and outdoor antennas.
http://www.kyes.com/antenna/pointing/pointing.html.
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Communicating simply and effectively is more important then , technical jibber jabber.
So you are doing Ok.