Cable and Satellite TV by design are obsolete unless they've converted to an IP-like delivery rather than the channels occupying spectrum space. But all of the exclusivity they enjoy (cable) is tied to local franchises and the infrastructure they built to serve their customers. That alone gives them the power to charge franchise fees to their customers.
And they use their monopoly to charge to Infinity fees related to their service such as installation, equipment, and now retransmission fees on top of what it all costs.
Sooner or later, they're going to have to get out of the "cable" TV business because in essence they're just using their local infrastructure to beam an IP service to their customers (unless they're actually delivering true cable TV which is probably as extinct as landline phones).
I wonder what's stopping them from expanding behind their physical boundaries to become virtual MPDs within their DMAs.
If that power was granted to them they could serve a lot more customers, so customers who are stuck with Mediacom as their only option could subscribe to Xfinity and vice versa, or pick one of the existing virtual providers. Customers with subscribe to their local service just for the bandwidth, and have the option of picking a television provider. Of course, cable companies with chime in by offering a "discount" to those who choose to subscribe to their own service, and charge a "penalty" or higher rate to a customer who picks the rival service on their home network.