Yes, I've seen Season 2 so don't laugh at me through your computer screen about how out of touch I am. In anticipation of S. 3, we're re-watching S. 1+2.
Like gambling and drinking, the only healthy way to binge watch TV is to set a limit. We limit ourselves to two episodes a night. That way, we don't get lost in the Netflix space-time continuum and the pleasure of the show gets stretched out longer. And seriously - if you watch too much Frank Underwood at once, you start talking and worse, thinking and plotting like Frank Underwood...
