There's one feature that will be killer on a TV:
rolling back the news ticker
I always arrive late at reading the scrolling text, so I read the last words of something that seems interesting, wondering what it's all about, and I need to wait for it to return again.
I dream of a button on the remote that rolls back only that part of the screen, and lets you read the full sentence again.
As usual, I'm writing it here and now, so I can become a patent troll when Sony or Samsung or even Apple will really implement that.
How this could be done, is left as an exercise for the reader.