First
Pink Floyd & Person of Interest. You've got taste all right ^_^ (I very rarely watch TV shows, only the very best, like breaking bad... and person of interest) did you know you can actually learn things from person of interest in-between the lines?
For example, I remember they talked in an episode about "Silkroad" and "Dark Net", I'm assuming it was deliberately done but that's actually a real online black market on "Deep" net. (Shh, talking about things like this on the internets is taboo, but I think it's ok since it's not like you can access it through google or anything, most people that know about it don't actually know how to access it anyways, I'm going to claim I'm one of those people. And don't try to access it even if you're curious; that's the "real" internet where there be monsters lurking around every corner. It's anything but a safe place.)
Also, "Root" is a pun for UNIX (based systems, like Linux, BSD, etc) administrator account. Unlike windows, the "root" user is able to easily fuck up the entire system as much as he wants to.
All kinds of little stuff like that ^_^