[publius911]

Don’t they pay an internet connection charge to the cable company? I understand them owning the modem-router and having their own private servers, but you’ve got to connect to the pipe somehow.

Of course.
Fast Internet is the key. Most of us can't exist in 2016 without it. For under a 100 a month that, and a good OTA antenna is all most of us need.

[Pearls Before Swine]

So we’re on the same page.

My original post was to someone who (if I read it properly) that you could save the Internet charge with your own modem.

You can save the TV charge by using the internet; but you still pay the provider for internet service. Supplying your own cable modem/router saves a few bucks. The big saving is that you don’t have to pay extra for cable TV channels you can find and stream on the internet.

Sorry for any confusion.