Earlier quoted context omitted.
What you have here has nothing to do with the law, and has to do with power. Disney willingly pulled Kimmel off their own networks, because a major distributor of their content(Sinclair) threatened to not air it, which accounts for about 20% of the viewership of the show.
Why did Sinclair threaten to not air it?
> Sinclair's stations have been known for featuring news content and programming that promote conservative political positions. They have been involved in various controversies surrounding politically motivated programming decisions,[172][173] such as news coverage and specials during the lead-ups to elections that were in support of the Republican Party.[174][175][172]
https://en.wikipedia.org/wiki/Sinclair_Broadcast_Group#Polit...
My read is they weren't coerced, but did as Trump desired because they like Trump. Either way, it should go to court.