A cosmic question

My husband is very interested in space and the stars right now. He's been going outside at night and trying to find various stars and constellations. I've been going outside with him. One thing I have noticed is that the constellations really don't look much like what they are named after. However, I seem to remember seeing on the news a few years ago (ok a few could be as much as 10 years) that someone had figured out what the night sky had looked like a few thousand years ago. When you look at the constellations from that time, they look more like their names' sakes. Unfortunately, I haven't been able to find confirmation of this anywhere (anywhere being defined as a five minute google search). Any one know?