Discerning viewers often cringe when a local news station's investigative team airs another hyped report, knowing they'll likely be subjected to a three-part, hidden-camera series on some government bureaucrat using too many paper clips. KHOU's Defenders (ya gotta have a catchy name, of course) are different. Mark Greenblatt and Jeremy Rogalski entertain, inform and expose at the same time. Greenblatt has made officials from both the Houston Fire Department and the Police Department squirm as they try to explain away things like not inspecting schools or covering up murder statistics. And there's a whole lot less of the "look at me" antics some other stations substitute for investigative reporting.