Attics Are Not a reception friendly environment and Never Will Be a reception friendly environment.
Yes start with a antenna in the attic.
Install a Winegard HD7696P antenna with a Winegard HDP-269 preamp in the attic aimed at about 345 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Looking at the tvfool Current Plus Pending Applications Digital Channel List of the tvfool radar plot and channel list , the Digital Tv stations/channels down the list to and including WUAB-DT REAL UHF Digital channel 28 , virtual number (43.1) MyNetwork , should be received.
As always , the Starting antenna aim direction is the --> starting antenna aim direction.
The aim of and the location of the HD7696P antenna can be changed for best reception.
Most Digital Tv's have a signal strength meter and some Digital Tv's also have a signal quality meter.
The HD7696P antenna can be adjusted for best signal quality and signal strength.
If WIVM-LD REAL UHF Digital channel 39 , virtual number (x.1-2-3-4)
http://en.wikipedia.org/wiki/WIVM-LD is not received and you will like to receive it , then install the HD7696P antenna above the roof in such a manner that the roof and house do not block reception to the , north west , north east , east , south east.
Here are some above the roof antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/ychim.html ,
http://www.ronard.com/34424560.html if using the eave mount use the #4560. ,
http://www.ronard.com.
Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box or buy from ronard.
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com.
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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.solidsignal.com or
http://www.hollandelectronics.com.
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As always , trees and tree leaves do a good job of , reflecting , reducing , blocking , Digital Tv reception and so do buildings and other obstructions including you own roof and house.
It is best to install the HD7696P antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception including your own roof and house.
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The Tv/s Must Channel Scan for the Broadcast Tv Channels , often named the 'Air Channels' or 'Antenna Channels' in the Digital 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 the cable tv channels.
DO NOT channel scan for cable tv channels.
Go into the Digital Tv setup menu and select , 'Air Channels' or 'Antenna Channels'.