Ring a ding ding dong!

This video doorbell lets you respond to visitors at your house, even if you're out running errands.

Well, at least that's the way it used to go.

Someone comes to your door, and no matter what's going on, they hit the little button that sets of the bells of Notre Dame in your house. What was worse, some little neighborhood goob would sneak up to your house, hit it and be gone around the corner laughing as you came to the door. The old “ding dong ditch.” Soooo funny.

Now there's new technology for your smart home, brought on by the wonderful imaginations of science fiction. Through the use of invisible waves of energy set at a certain frequency, scientists from NASA found a way to get not only sound to transmit wirelessly to something called a cell phone, but they even got pictures to do the same.

I think Charlie Chaplin's people called them “talkies.”

This video doorbell lets you respond to visitors at your house, even if you're out running errands.

Now, that technology has gone to mind-blowing proportions. People use WiFi in their homes to talk to their phones and pull off all sorts of fun trucks. We just worked with Best Buy to install the Ring Video Doorbell, which alerts us on our phones when motion is detected at our door or someone rings the bell – even if we're halfway across the country. We can see video of what's up, and even talk to them through the microphone day or night, with night vision and wide-angle HD. The company also has a chime add-on that plugs into a power outlet to alert you at home in case your phone is dead, and a subscription service to auto-record visitors and would-be intruders. These people thought of everything!

This video doorbell lets you respond to visitors at your house, even if you're out running errands.

Look out neighborhood goob, here we don't come. You can hit that bell if you want, but I can stay nice and cozy on my couch watching SpongeBob…I mean, Platoon…because I can see you from anywhere in my house.

This video doorbell lets you respond to visitors at your house, even if you're out running errands.

Even the special alone room with the great white seat.

The set up was simple. Once you get it hooked up to your in house WiFi, the device even sets you up with videos to walk you through everything. That's better than a Swedish discount furniture store. And, this one is fun to play Wizard of Oz tricks on your kids.

This video doorbell lets you respond to visitors at your house, even if you're out running errands.

So…what's the password?