The giant Consumer Electronics Show is now officially underway in Las Vegas, and the TVs on display are changing so much they might be in store for a new name. Adam Balkin filed the following report.

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Remember the days when the biggest decision to make when buying a TV was simply what size you wanted? Now there are more vivid, thinner technologies to decide on — OLED, LED backlit, crystal LCD. TV are also smarter, connected to the Internet to get more content and more functionality and even have their own apps like smartphones.

What's scary is those are kind of the older new features to expect.

The newer new features include cameras on sets, like one from Samsung that allows the viewer to control everything through voice commands or waving one's hands.

"So say, for instance, 'Hi TV,' and it'll power up. It will also allow you to wave and grab different apps," says Stuart Silloway/Samsung Electronics.

While 3-D may also seem like a relatively older advance, glasses-free 3-D TVs are finally going to be available in 2012, and the technology is much more sophisticated than one might expect.

Toshiba's glasses-free 3-D set, for one, tracks the viewer's eyes in order to make the image pop.

"It'll track an individual viewer for active eye tracking, or if you've got multiple viewers watching, you can set it up so nine people will have their sweet spot," says Bruce Walker of Toshiba.

Another neat trend with 3-D sets lets two people sit on the exact same couch and watch two totally different programs on the same single TV.

Since 3-D images are really two images, one for each eye, a TV can have two unrelated programs on the screen and special glasses, like DualView glasses from Samsung, will just lock on one or the other. Built-in speakers will switch the audio too.

On top of all these innovations, there are also so-called "4K" sets, which are super hi-definition TVs.

"What you're dealing with to create the picture is eight million pixels versus roughly only two million pixels," says Brad Lyons of Sharp Electronics.

And even though 4K sets aren't even on sale yet, there is an 8K set on display. Don't you just love technology?