Moving forward those TVs are all going to be 4K. Oh, HDTV isn't going away. It's just that the vendors will be selling them on the low-end in 2015, while, as ZDNet's sister publication puts it, they'll be "putting all the picture quality enhancements that do matter -- local dimming, better color and better panel technology -- into 4K TV."
What the vendors also aren't telling you, until you look into the fine print, is that behind all the display magic is one version or another of Linux.
Android, which is mostly thought of as only for smartphones and tablets, will also be powering the latest Smart and 4K TVs from Philips, Sharp, and Sony who have all announced that they'll be shipping their Smart TVs with Android TV. This is a specialized version of Android based on Android 5.0, Lollipop. Besides providing various Smart TV applications and interfaces, it also includes Chromecast's ability to display video from your smartphones, tablets, and PCs.
Which Linux will win here? I find it hard to see Android losing out in this competition. Still, Smart TVs, despite years of development, are immature. I wouldn't be shocked if one of the others managed to dominate the market. But whatever operating system ends up running the majority of our Smart TVs, its roots will be deep in Linux.