Explain this strange photographic fact?

These two photos are taken in my house by Nikon camera.

At first I took this photo:

In this photo everything is ok, TV and the image (in TV) are normal.

And, then, after several seconds, I took this photo:

And, look at the TV and the image of the display. The TV itself is normal, but the display image is deformed somehow. I don't understand, how the display deformed, and the TV itself did not.

Please, can you explain the phenomenon, how it happened?

Basically, in order to take a picture, you have to have a threshold light intensity in order for the camera to register making a pixel a certain color (or for the chemicals involved in film to react and change colors).

It's a dark room, so the shudder speed on the camera is slowed to accommodate for the reduced light intensity. There's less light coming in so the shudder has to stay open longer so that enough gets in to create the picture.

Having the shudder open longer means the image is taken over a longer period of time. The effect you are seeing is basically the same you would see if you were moving the camera quickly and took a picture under normal light conditions. In that situation, it makes everything blurry and smeared because you are basically mixing the colors of light from different objects together on the camera's photosensors. In the dark room situation, the computer monitor is the only thing dumping out enough light to make the effect noticeable. The reason it's black behind it can only be a result of the program you are watching cutting to a different scene while you are taking the picture.