If you were looking to kill a few unwanted hours Sunday night, perhaps you watched the Pro Bowl.The NFL’s biggest, brashest stars were on display, including the likes of Drew Brees, Odell Beckham, Dez Bryant, Richard Sherman and DeMarco Murray.Yet the game was a lesson in intense boredom. The AFC eventually won, 20-13, and I know this only because I looked up the score Monday. I couldn’t make it to the Pro Bowl finish, instead flipping the channel to see the white-smiled Steve Harvey as host of “Family Feud.”So how could a Pro Bowl so rich in talent be so poor in watchability?