Businesses in Omaha are trying to capitalize on a Denver Broncos audible that bears the city’s name.  When quarterback Peyton Manning gets behind the Broncos’ offense Sunday, you will hear him bark out the word “Omaha!”  T-shirts and sweatshirts are starting to surface, bearing that phrase.  At the Omaha Airport, stores are selling the sweatshirt in Broncos colors with “Omaha!” printed twice.  Manning says the word can mean multiple things in the offense and isn’t based on play call.  Sports books in Vegas are even taking bets on how many times “Omaha!” will be uttered by Manning in Super Bowl 48.