Greetings Millercd,
Your plot features high-VHF (real channels 7-13) and UHF (real channels 14 and up) stations.
If I were attempting to receive the majority of Seattle broadcasts, I'd choose an
Antennacraft HBU33 orientated to magnetic 170 for testing purposes.
http://www.solidsignal.com/pview.asp...sku=1607900500 Perform TV tuner scan once system is hooked up.
It is also suggested you install the antenna outdoors mounted on your roof with the clearest pathway to the south.
How many TVs do you want to feed? What is your length of coax run going to be? If you are planning more than two feeds way may need to discuss a distribution amplifier.
Cheers.