When Reed tries to speak up for Malloy as Mac chews him out, Mac reminds Reed that he has only been on the job for 3 weeks. Since this was the 19th episode to air, that doesn't add up.
At the beginning a call comes through for Adam 7 on Adam 12's radio Adam 11 is parked beside them and Malloy tells those officers that their calls are flowing over. The call repeats requesting Adam 7. One if the Adam 11 officers responds identifying as Adam 11.
At the beginning of the episode, Malloy and Reed are shown in their usual squad car, 80817, with Officer Brinkman and his partner as Adam-11 in squad car 80789, an earlier model Plymouth than 80817. Later in the episode, Malloy and Reed arrive at a call in 80789, and are back in 80817 for the rest of the episode.
At the building with the jumper on the ledge, 80789 is shown arriving as back-up, with a different crew again, this time referred to as "27".
At the building with the jumper on the ledge, 80789 is shown arriving as back-up, with a different crew again, this time referred to as "27".
When following the drunk driver Reed says looks like a 502, but when Malloy talks to the driver he advises that he's in violation of 23102(a) VC. 502 was the old Penal Code section for drunk driving, once it became a Vehicle Code section it was changed to 23102(a). In 2020 it is 23152 VC.
Reed is just out of the academy and would not be using an outdated designation for a crime.