Yesterday was a day of cancellations. Let's start with CBS, which is not proceeding with a fifth season of Magnum P.I. With Bull announcing in January that its current Season 6 will be its last, Magnum P.I. is the most established CBS series to be canceled this season. As a Top 25 show in total viewers, it also may be the most watched broadcast series to get the axe this upfront season... Chuck Lorre's sophomore comedy United States of Al is also ending at CBS. The show, which will air its finale this month, revolved around Riley (Parker Young), a Marine combat veteran struggling to readjust to civilian life in Ohio, and "Al" Awalmir (Adhir Kalyan), the interpreter who served with his unit in Afghanistan and has just arrived to start a new life in America. The series was reworked in its second season following the fall of Afghanistan...