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The Tvfool radar report and channel list shows the Real Channel that is being transmitted and received.
The Current Tv channels that are being transmitted and received in the , USA , Canada , Mexico , are.
VHF low band channels 2 thru 6.
VHF high band channels 7 thru 13.
UHF band channels 14 thru 51.
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KOMO is Real UHF Channel 38.
KING is Real UHF channel 48.
The UHF channel frequencies are short wave length and tend to be very directional and at a reception location this can create , Dead spots where the signal is low signal strength.
Moving the antenna up or down can move the antenna out of a dead spot.
And changing the aim of the antenna can also help with reception.
Trees and tree leaves , reflect (multi-path) , absorb , block , Tv reception , and some channels can be more effected then others.
Moving the antenna to a location that has less to no trees in the direction of reception will help with reception.
Most Digital Tv's have a Signal Strength Meter and some Digital Tv' also have a Signal Quality Meter.
Signal Quality is important reliable reception.
If the Tv has a Signal Quality Meter , adjust and aim and locate the antenna for best signal quality.
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Also , Digital Tuners can develop -Digital Glitches- that are not cleared out with simple channel scans.
To clear tuner do Double Rescan.
http://www.wchstv.com/DoubleReScanAlert.pdf.