YES a very good reception situation , YES fortunately for you WRGB CBS is transmitting on VHF low band channel 6.
VHF low band channels 2 thru 6 , transmit a longer distance with less power over a greater area then the Tv channels VHF high band 7 thru 13 , UHF band channels 14 thru 51.
I recommend a Winegard HD7084P All channel antenna aimed at about 117 degree magnetic compass.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Install a Kitz Tech KT-200 remote power coax fed amplifier booster.
The KT-200 (Ultra Low Noise) remote power booster provides the flexibility to install the booster unit outdoos or indoors.
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.
For 4 Tv's connected use a , HFS-4D , 4 way splitter.
Buy the HFS splitters at ,
http://www.hollandelectronics.com , or ,
http://www.solidsignal.com.
Here are some places to buy antennas and etc. ,
http://www.winegarddirect.com ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.kitztech.com.
Here are some Strong and Sturdy 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.
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WMHT-DT 34 PBS is a Weak Signal Strength Tv station.
If PBS is not received , or is received and you will like to receive more Tv channels , here is a way to receive All the PBS channels and other Tv channels for free.
FTA = Free To Air satellite Tv.
FTA is received with a small satellite dish.
Here is a web site that has information and how to get started with FTA.
YES , FTA is 100% legal.
http://www.ftalist.com