Composer Mike Post is 68 today.
His themes for popular television programs are played continually worldwide. I'd argue that his themes have actually helped programs become popular. I've listed my four favorites, all of which reflect the mood of the show: Law and Order dramatic, Rockford Files and Magnum playful, and Hill Street Blues, a haunting piece of music with a bluesy touch.
Here is my disclaimer: If you are looking at this blog and any of these themes have dead links it's because YouTube pulled them out of circulation. Blame YouTube, not MeTube.