Front-facing cameras are everywhere on laptops, tablets and phones. If the Consumer Electronics Show in Las Vegas was any indication, they’re about to become ubiquitous on TVs as well.

New TVs from Samsung and Lenovo used the show to introduce TVs that recognize you and others in the room, automatically logging you into Facebook and pulling up your favorite channels or websites. Lenovo’s TV lets you use the camera as an ID service that blocks access to certain content or channels if a child is in the room.

For Samsung’s 7500 and 8000 series TVs, all you have to do is say “Hi, TV,” when you walk into a room for the TV to turn on and know who’s there.