Premise: Take Doogie Howser out of the O.R., put him in a classroom and you have the basic premise of ``Mr. Young.'' The titular Adam Young is a whiz kid who entered college as a 9-year-old. At 14, now a college graduate, he begins his career teaching science to high schoolers -- including both his best friend and his crush, which presents a challenge for him in balancing his personal and professional lives. As if being a teen isn't hard enough!