I watched 1-Adam-12 as a kid and really enjoyed the show. This show is a spin-off of Dragnet where 1-Adam-12 appeared in at least one (maybe more) episodes. It's been awhile to remember specifics. The actor who played Friday in Dragnet produced / created 1-Adam-12.
Basically, the series follows two police officers through their daily lives. Another series - EMERGENCY - followed a group of fire fighters. I think the same production company did both shows.
It was interesting to follow their activities and also educational (for a kid) to see what they did and how they did it.