What are the non-comedy shows dealing with lower-class/working-class life?

I don't watch much network TV, so I don't know if not being able to think of any just means I'm out of touch, or poor families aren't considered good for drama, just for jokes. (That probably sounds more sharp than intended. I'm really just puzzled, trying to think of "families like mine" in a non-comedy TV setting, and drawing a blank.)