LAST EDITED ON Apr-03-07 AT 04:58 PM (EDT)
 
Knight Rider, with David Hasselhoff as itinerant do-gooder Michael Knight. He had a car equipped with an AI called KITT, and a communicator built into his watch. Once an episode or so he'd get into trouble and call out "KITT, I need you!" into his watch, and KITT would drive to the rescue (often busting through a wall in the process).

Edit: The funniest thing about this reference is probably the juxtaposition of naive, innocent KITT with his primary directive to protect human life... and the bloodthirsty HK-47.