KGO (ABC) and KNTV (NBC) are transmitting in VHF band III. Last time I checked there was even a pending application to transmit on channel 6 (VHF band I) but I don't see that any longer.
The furthest away station that I'm receiving is KRCB (73 miles) on UHF. All other stations are half that distance or closer.
Edit: I should probably add that neither of my two antennas has a pre-amp. I do however use a cheap amplified splitter inside the home.--
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