Don't remember a lot. Our hero was a detective on a city police force in the near future.
The only clear images I still have in my memory is him driving on a freeway and there were signs crossing over the road with advertising on them.
And he opened his phone like a small book and there was a video screen on one side and the push button numbers on the other. This stuck in my mind because I think this was years before cell phones! (Late 70s?) I also seem to remember he had a partner and the series didn't last too long. Maybe a season or 2.