If, hypothetically, you made good use of torrents, and therefore had any series, ever, at your disposal, which would stay at the front of your playlist forever?
For me it's:
Always Sunny In Philadelphia
Curb Your Enthusiasm
I am considering Extras as a possible fourth stalwart, although it's not as funny as three above.
I know about a million people with family guy backed up, but there must be some more interesting ones. I have attenboroughs blue planet when i'm feeling thoughtful too