"Person of Interest" is the rare sci-fi show that had no bad seasons, and a healthy audience all the way to the end. So why did CBS cancel the series?

Add Yahoo as a preferred source to see more of our stories on Google. John (Jim Caviezel) and Harold (Michael Emerson) standing next to each other on "Person of Interest." - CBS The television ...

John (Jim Caviezel) and Harold (Michael Emerson) standing next to each other on "Person of Interest." - CBS The television landscape can be cruel to science fiction, and many great sci-fi shows have ...