When Jake thinks the person pacing is a jazz musician he puts his arm on the counter but in the next scene his hand is next to his face.
After Ann asks Becker if he is going to fire her Margret brings her bag out but in the next scene she brings it out again.
The lapel on the old man's coat when he's talking to the diner people.
The premise the Linda made the error when writing the prescription is completely unbelievable. Only a doctor would be able to write a prescription. Linda is just an office assistant (not even a nurse), so she wouldn't be writing prescriptions at all.
As Mr Barsotti sits on the table, panicking, a boom mike is briefly visible.
Dr. Becker is very surprised to learn Linda comes from a wealthy family but in the pilot he tells someone he hired her because he owed her father a favor.