What is TV Everywhere?
Television programming delivered on Web, mobile, portable or other distribution platforms to a television distributor’s customers, at no additional charge.

How it Works 
The key is a software process called authentication. Essentially the process, which can be as simple as entering a user name and password on a web site, recognizes that an online user is a customer of a cable company or other service provider. Then it grants the user access to watch cable programming offered on any broadband connected device. Authentication can take place on a web portal that offers programming from many networks, or it can take place on a programming network’s web site, or both.