The FCC is charged with ensuring the people of the United States have wire and radio communication. And to this end enforce said rules.
The Federal Communications Commission does not have any influence over Television stations except they may license said stations. Syndicates have been buying newspapers, magazines, FCC licensed radio and television stations for a long time.
To pull a license to force a station to go dark, then prove wrong doing that is a violation of U.S. law. FCC can pull a license it issued and not much else.
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