Nintendo's next-gen console, the Wii U, has a big old screen on its controller. It's already known that it'll be used for playing games, but it could also be used to play video, such as streaming movies from Netflix.
The new console, which should hit store shelves next summer or fall, will utilize its new controller in a number of ways, one of which may be as a video screen for streaming content. Unfortunately, the controller won't work when separated from the console, so you won't be able to, say, take it with you on trips to watch movies on while the console stays plugged in at home. But if you want to watch one thing on the couch while someone else watches something different on the TV, this could theoretically do it.
Of course, you could also use a tablet or a laptop to do the same thing, but it's nice to have options, right?