My apartment has a monitoring camera in the entrance. It is connected to the cable line so that every resident can watch on his or her TV set who has come. Different from most intercom system with video, we can check the image taken by the camera whenever we like. As there are more than 100 families in my apartment, some one is almost always on the camera. It's interesting to see the live video because we can see real people not pretending like actors. It is sometimes much more interesting than usual TV programs. I think most people are voyeurs of a kind and I have to say I am one of them.