How will this be an advance if it is not accompanied by imagination? Turning on the TV used to take less than a second; I hit the ON switch as I walked past the set, crossing the room from door to sofa. Now it takes longer to give me a picture than my CRT tube TV did. Oh, and now we also have a TV that crashes.
It would be possible to have multiple screens that personalize their output by recognizing individuals as they come and go, OK for surfing (maybe) but that doesn't fix the sharing of audio or the distraction from the other screens. Far more useful is enhancing machine speech recognition using video cues from the face. That can work for smart phones, but not for TVs until zoom and face tracking is added.
I guess it will arrive via the back door like Kinect.
There are possibilities for improving access for the disadvantaged but most sites on the internet are terribly hard work for people of limited vision.
Something like this is already applied in games, then why not in other day-to-day applications such as switching the TV on by looking at it? More efficient processors and less power hungry algorithms will make electronic vision to be part of our day to day life very soon.