Former Los Angeles County District Attorney Gil Garcetti is a Consulting Producer on The Closer, and Los Angeles Police Department detective Mike Berchem is the show's Technical Advisor.
The first airing of the pilot and the second and third season premieres were aired commercial-free.
Just 2 weeks after its debut, TNT ordered a second season of 15 episodes.
It appears that among Lt. Provenza's 4 or more ex-wives there was a Heather, a Liz (who corrected his grammar), and a Sharon (who always had to be right). And that his 2nd wife and 4th wife are actually the same women.
The appearance of her oatmeal colored sweater is a sign that Brenda is overwhelmed and under a lot of stress - the sweater acts like her security blanket.
The production team has said that the characters wear colors that either compliment or contrast Brenda's outfit in each scene. Those that compliment her colors are on her side or will be helpful to the investigation. Those that contrast are her opposition and/or the guilty party.