CES 2013: The rise of 4K UHDTVs

So, you've finally upgraded all of your TVs to 1080p, and some of them are even 3D-capable. Congratulations! You're just in time for the industry's next upgrade cycle, as just about every TV manufacturer begins to push ultra-high-def sets with resolutions four times greater than today's HD sets (hence the "4K" moniker). But don't take out your wallet just yet. Today's UHDTVs sell for as much as $20,000, and there's almost no 4K programming available -- though Sony hopes to change that later this year, when it begins shipping a dedicated 4K media player.