It's not that it's TV-capable, but how so and what that actually means (it's more than signal processing...). It's not that the device can see, hear and speak to you, but how so and what that actually means (there is no predetermined limit to what you can do with it - as programmers and users alike).
An Xbox One comes with 300,000 servers. That's a big computer. How will you use it? What will you do? What will you make? Nothing about what we know about the device limits the possibilities of how you can leverage it - use it, program it, innovate with it. Plus, all the details aren't yet public (and I, like you, don't know what they are and eagerly await E3).
(the video is cute and funny, but that's all it is...)