"From sports teams to theater productions, high schools are full of extra-curricular activities for students to pursue. But one after-school program you may not know about is growing in popularity.It involves varsity teams competing not on the gridiron, but over the grill iron. At Burnet High School, students cook in a state-of-art kitchen, worth a quarter of a million dollars, to create what some would consider the holy grail of Texas grilling. They’re the Under-dawgs, a high school varsity barbecue team that won the regional championship last year. Maria Villareal reports.