I watched first episode of it just to check why they given name Person of Interest and I ended up watching all 100+ episodes/5 seasons of it...
I have watched many tv and web series but I will put it on top of list as "my favourite "
What a series it is... full of thrill/suspense/Technology/Action/love/friendship....
They covered almost all emotions.
Best part is every episode have one or two awesome conversation that can be used as quote... So I can summarise it like..
It start with quote..
"When you find that one person who connects you to the world, you become someone different, someone better. When that person is taken from you, what do you become then?"
And tried to convince audience with...
"In the end we're all alone, and no one's coming to save you."
But Ended with ...
"Someone once asked me if I had learned anything from it all. So let me tell you what I've learned. I learned everyone dies alone. But if you meant something to someone, if you helped someone, or loved someone. If even a single person remembers you, then maybe you never really die. And maybe... this isn't the end at all."