When Oscar speaks with Steve and Jamie at the beginning of the episode, he removes his glasses twice.
The merc behind the wheel of the attempted-hit-and-run car is initially shown starting up and doing a burnout in a huge lumbering gray early-70's Cadillac-type luxury-sedan with the ignition-switch mounted on the steering-column, yet in the subsequent wide-angle shot, this hulking gray sedan is visible at the front of the line of stopped cars behind the crosswalk but doesn't pull out; the car that actually tries to run Tanya down is a bright reddish-orange mid-size AMC Matador/Ambassador sedan that would likely have its ignition-switch located down on the dashboard the way most older-model cars were configured prior to the early 70's; it swerves out from the back of the line of stopped cars and charges through the intersection right after Steve yanks Tanya away.
When the assassin is shown sitting in his car, revving the engine, he is sitting in a brown leather office chair, not the front seat of a car (which was taken from an earlier scene in an office, receiving orders).
When Steve is rescuing Tanya, he blocks a punch with his non-bionic left arm, but produces a bionic thud.
The confidential file on Uri Gargon contains two paragraphs written from the point of view of one of the show's staff writers. For example: "I, of course, expect proper screen credit for this wonderful job I am doing of typing a confidential file for inserts."
The door that Steve breaks the doorknob off apparently has no lock on the knob; the door's locking device is a key-operated deadbolt that's located several inches above the knob. So Steve should have known that there was no need to break the knob, and then he also doesn't do anything to the deadbolt, which he would need to break in order to get in.
When Steve lifts the barbell "single-handedly", there is no accompanying bionic sound.
Tanya is identified as a teenager, but she obviously looks a good bit older (and the actress is indeed in her mid-20s).