People replace TV's so much less frequently than computers.
This is very true.
I really hope they don't just put all these features in their own TV set...
Which is exactly what they would do. Apple isn't really about licensing out stuff. The closest to 'another tv set' you would get is the set top box. But then again, why bother making a tv set at all when the selling point is content and the STB does that just fine.