Coming soon to a media center near you: Sony has announced a new line of "4k" TV sets. Boasting a native resolution four times higher than common HD TVs today, Sony is also providing a media server with 4k content and a promise to refresh that content periodically for free. At a whopping $25,000, I'd expect nothing less.
I seem to recall it took big (36" +) LCDs about ten years before we started to seriously consider buying one, and about four years after that before the TV we had finally fell over and died. Our current TV is 4 years old, so we seem to be right on track for one of these 4k things, in 2023.