its not a legal issue its a greed $$$ issue
its new and Popular so they are going to charge you for it if they can.
I would go to your local PC store and ask about tuning in cable tv on a computer set up for dvr.
It won’t unscramble any pay channels but it should be able to tune in just like a regular tv.
If you have to have a box for cable good luck working around that.
I have sat. its only 7 dollars so I just pay it.
It’s crazy but ya got to pay to play.