When Pete is in the helicopter the pilot can be seen wearing headphones. He is wearing them backwards as the curve is facing the wrong direction.
When Jim is in Air 10 chasing the 2-11 suspects in the Ford and he says "Air 10 to Air 70", the reply "Go 10" is obviously from a crew member off camera, not from the radio. The "radio voice" effect is usually dubbed in post production, but the editor forgot to do it in this case.
Adam-12 and the LAFD respond to the burning house less than one minute after Reed calls it in. An unheard of response time in any city let alone one as large as LA.