CBS is a television NETWORK---
Television NETWORKS, (nor cable channels), DO NOT HAVE a "broadcasting license"---
nor are they required to have one!
Only broadcasting "stations" have broadcasting licenses, and are required to have them....
Now, CBS may own some stations, and they could threaten those individual station licenses---
and I don't know how the CBS television network forwards their programs to all of their affiliates---
they COULD be doing that through some kind of signal which requires a license,
but seems like the INTERNET would be an alternative which would require NO license... "streaming", basically.
As such, this is a totally meaningless threat---
other than the fact that it is predictable nazi-wannabe FASCIST bullying---
and shows that, as usual, Trump and his clown car
have no idea WHAT THE FUCK they are talking about!
My personal expertise is this issue, such as it is, stems from the fact that I used to be a "radio pirate" who would have liked to broadcast legally, but it was far too expensive.... 
but I do know the difference between a broadcasting station, which needs a license, and a 'network' for which there is no such license in existence, and never has been such a thing.
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