The first is a prototype from KDDI lab, presented at the NAB 2010 conference a couple of months ago. I couldn't dig much information about it (here is some), though it seems to have the goal of personalizing advertisements in mind.
The other design is no where near reaching a prototype stage. Called the Meta-Mirror and imagined by Irish design studio Notion, it has less commercial agenda than the one by KDDI. It really strives to improve television. And with all the reality-tv shows out there, maybe augmented reality is the best way to do so. See more images of Meta-Mirror on Yanko Design.