Would this work OTA in areas like mine (Mendocino County, NW CA) that are served by translators? How about over cable or satellite? Tha translator here is still broadcasting in analog, and will continue to do so after the Febuary date (translators and low power tv stations aren't required to go digital by any certain date).
It can affect anything in the VHF or UHF TV bands. Cable isn't affected because it's a closed system that doesn't use the wireless spectrum over the air. Satellite is in a different frequency band than VHF or UHF TV and thus would be unaffected.