Pick Your TV Poison

If you follow me at all on social media, you'll know I recently became obsessed with Doctor Who, a British TV show about a time-traveling alien called The Doctor who flies around in a spaceship disguised as an old-fashioned police call box. It's called the TARDIS (Time and Relative Dimension in Space.)

Doctor Who has been on TV since the 60s, and the clever thing about Time Lords like The Doctor is that when they're in mortal peril, they can "regenerate": they take on a completely new form and personality, but retain all of their memories. So when the lead actor departs the show, they can just replace him.
I know. It sounds absolutely crazy and stupid. But just Google "Doctor Who" and you'll see it's outrageously popular. I love it so much.
Here's a photo of the Tenth Doctor, because I love him.
What I want to know is this: what TV show is your absolute favorite of all time? Or which show are you currently so obsessed with that you watch hours and hours of it at a time and lose sleep? Leave a comment, and I might just compile a blog post of "Young & Free TV Picks"!
Stay awesome!