Continuity mistake: Part way into the episode they show the front of Jamie's Ford police car and the car number on the front plate, but when they pull up to the court house to talk to his sister, it's a Chevrolet police car with a different number on the front. (00:09:05 - 00:09:40)
Continuity mistake: While Danny and Waylon Gates are with Rodriguez at the safe house, showing him the photograph of his daughters, during this scene there is no picture hanging on the wall beside the door, but as they lead Rodriguez out in the last shot of the scene, a picture suddenly appears on that wall. (00:37:30 - 00:39:20)
Visible crew/equipment: At the safe house, while Danny and Waylon are alone with Rodriguez they "convince" him to call off his men, and in the last shot of this scene as they head out the door, the reflection of a crew member (presumably the camera operator) becomes visible on the picture hanging beside the door. (00:39:20)
Character mistake: Eddie is confronted by Captain McNichols after being caught in her office. Eddie responds by calling her Sarge, which is an incorrect title remark referring to a Captain. (00:38:46)
Parenthood - S2-E14
Continuity mistake: Frank reaches for his cup of coffee twice and moves his foil-wrapped breakfast sandwich from sitting on top of a stack of blue folders on top of a newspaper. However, in the next scene, Frank reaches for the sandwich, and it is back on the stack of blue folders. (00:10:07)
Character mistake: After the explosion, Danny calls for a medic. At the hospital Baez ask Danny if the reason he called for a medic instead of a bus was it because it reminded you of something that happened. Danny was a Marine, so if he was having a flashback he would have called for a corpsman instead of a medic. Medics are in the Army, not the Marine Corps. (00:06:50 - 00:54:22)
Milestones - S9-E12
Other mistake: First we see Jamie in a Ford CVPI with license plates 7554 like a couple of times before in the show, a minute after he's seen exiting a 2015 Ford Taurus with plates 82399. He answers a 10-85 while supposedly driving in the CVPI but somehow he manages to change in less than a minute to a Taurus. We see the exterior of the car, but the car's interior corresponding to the Taurus is seen a few seconds earlier. (00:03:35 - 00:04:20)
Confessions - S7-E9
Continuity mistake: We can see Jamie driving a Ford CVPI with plates reading 7554, however when he appears in the following shot in the court, where he was going to in the previous scene, he's driving a Chevy Impala with plates 61795. I am not sure, but I think this error happened in the previous seasons as well. (00:09:08 - 00:09:48)
Continuity mistake: Jamie runs to a car which has crashed and has a light pole across its roof. The light pole disappears in the closeups as Jamie struggles to free the driver.
Continuity mistake: The Reagan men sit at the table for a drink. Jamie's glass moves towards/away from him in different shots. (00:23:15)
Dedication - S1-E15
Revealing mistake: Frank gives Walter a new cigar. However, in the closeup when Walter puts the cigar in his mouth The End of the cigar is burnt and shows that it was once lit and put out. (00:01:35)
Continuity mistake: Jenko and Witten confront a guy creating a commotion in a market. The felon runs past them out to the sidewalk where, somehow, the two cops are waiting and grab him.
Fog of War - S10-E14
Factual error: During the funeral towards The End of the episode, both Jamie and Eddie are wearing white shirts with their dress uniforms. In the NYPD, only Lieutenant and above wear white shirts, like the show has portrayed. The color doesn't change for the dress uniform. (00:38:35 - 00:41:14)
Continuity mistake: Toward The End of the episode when the older mobster is walking from his car down a narrow alleyway toward home, he passes under a low hanging outdoor light fixture. When he is accosted by the other mobster with a gun they are standing with the light fixture between them. There is no movement, but when the police arrive, the light fixture is well behind the guy with the gun.
Continuity mistake: While Danny and Baez are questioning Damian about Mason's whereabouts, Damian's right handcuff switches to the opposite way depending on the angle of the shots. Either the single metal bar faces up or the double bar faces up, which is quite impossible to change when it's locked around his wrist.
Visible crew/equipment: After Danny and Baez get the hospital physician's rundown on Joe's condition, when the partners reintroduce themselves to Joe the reflection of the boom pole/mic is visible on the glass behind Danny.
Visible crew/equipment: When Eddie comments that the Rough Tough Cream Puff made a collar, she and Jamie walk up the hallway, and before Eddie reaches the doorway we can see the red tape mark on the floor as we hear Marcus brag, "mad fast." (00:15:55)
Visible crew/equipment: After Frank tells Garrett to set up the meeting with Thomas and agrees to play nice, when it cuts to Erin as she walks toward Zach and the AG, the T-mark and white tape mark are visible on the floor in front of the two men. (00:01:50)
Fresh Start - S6-E15
Continuity mistake: When Erin is in the ladies' room walking toward the door, she finds Anthony "lurking" in the hall, and Erin's eyeglasses which are hanging from her crew-neck top go from facing her right side, to her left side, then back to her right side, between shots. (00:31:55)
Continuity mistake: Franks makes a comment that there have only been 18 deaths last year in New York, but Danny on his own closed more than 30 in the season before.
Answer: The Seal of the City of New York.