Someone on another site recently recommended "This American Life" radio show to me and I've listened to it almost every single day since.
I don't watch television during the day while I'm working because it is too big of a distraction, but I do get lonely in the quiet so I listen to their radio show online. It's interesting, documentary/non-fiction sort of stuff and I love the host's voice (Ira Glass). I also listen to it a lot as I'm falling asleep at night.
You can listen to it online for free. Start with the ones listed as their "favorites", a lot of those are my favorites too. I've already worked my way through that list and am working through the archives now.