WatchTVEverywhere is included at no additional charge with your cable TV subscription.
WatchTVEverywhere is an extension of your cable TV subscription. It allows you to watch the same shows and programs you watch on TV from wherever you what, whenever you want.
Streaming services like Netflix, Amazon Prime and Hulu only offer past seasons of shows so you have to wait to watch the current season. With watchTVEverywhere, you can watch the current season of your favorite shows within days of their premiere. Most networks also make past episodes and "behind-the-scenes" videos available.
Subscription services like SlingTV or fuboTV are different in that they show live TV content only. They are essentially cable channels streamed over the Internet. You may also have access to other content through these services as well.
Many networks also include a live stream as part of their watchTVEverywhere offerings.