How do I connect my lcd computer monitor to my digital/dvr cable box?

Please explain this to me like I am a monkey. I am horrible at hooking up tv’s! I have it powered on, nothing connected.
I would like to make use of the small lcd monitor in the kids play room. It seems like this should work so I wont have to buy an actual tv.


Confucius say: If you learn dance, you will be far happier than those who don’t.