Out of the typical 2 hours and 54 minutes of the average NFL broadcast, a whole 11 minutes actually feature live game action. So next time you want to call out soccer or baseball fans for following a sport where nothing happens, you might want to tend to your own garden.
I have been arguing exactly this point in bars (well, not just bars) across America for years. I fear decades, even.
(As the Deadspin article notes, Wired's Dave Banks did a couch-potato version of this analysis for his Geek Dad blog in 2008.)