Nothing can conger up memories like a television theme song. If the theme song is good often times it is easy to get hooked on the show itself.
I've made a list of the top instrumental police/judge/investigative shows of all time.
Did I miss yours? Feel free to add it. My choices in no particular order are:
Barney Miller Night Court Hill Street Blues Peter Gunn Law and Order Swat Chips Hawaii-5-0 Mission Impossible