Even in the station's market, if their broadcast tower is being buffeted by a windy day, the antenna at the top can bounce back and forth by a substantial fraction of the wavelength of their channel carrier frequency. Digital TV does have some echo (ghost) cancellation references but it does have limits. Depending on how the ghosts are where you live, you could get momentary failures as ghost strengths and phasing changes as the tower moves in the wind. And things may get to be more fun as DX, but maybe not, the ghosts may get weak enough to not be an issue...
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