It seems like court TV shows are popping up everywhere. You don't even have to have been a judge to get a gig naming yourself as one today. All of the judges I listed in my top five were judges in real life, though they acted as arbitrators on TV. You can tell by their no-nonsense styles that these TV judges know how to handle a courtroom, and more importantly, they know the laws.
Judge Judy Sheindlin
Judge Judy has been eating lying teenagers for breakfast since 1996 on Judge Judy. Able to put anyone in their place with a single glare, Sheindlin takes no prisoners in her courtroom. One of the few TV judges who treats her show just as she would her real courtroom, Judge Judy schools all who enter on basic court etiquette.