The Big 12 leaders have decided NOT to let the Longhorn Network air high school game highlights. The NCAA has banned school affiliated networks from airing high school games. The Big 12 Board of Directors banned high school game highlights yesterday, but scores, standings, and statistics will be allowed IF approved by the NCAA. The Longhorn network is a cooperative effort between the University of Texas and ESPN.  The network is a 20 year, $300 million venture that was struck earlier this year.  The Big 12 also said that airing a second football game on the network requires approval by both schools and the league's television partners, Fox Sports and ABC/ESPN.