I need help with the name of a show I use to watch, it was about two detectives or cops, I remember them always wearing tan trench coats. One was a man and the other a bonde woman. I remember watching when I was a young girl, so it is kid based.

Sounds like moonlighting.

"Moonlighting" (1985) (http://www.imdb.com/title/tt0088571/)

Bruce Willis and Cybil Shepard.

Could be the Mathnet segment of the show "Square One."