The Gang Runs for Office - S2-E8
Continuity mistake: When Mac is about to get in the cop's car he has a full hot dog. When he gets in there is no hot dog. (00:21:15)
Suggested correction: After we see him on the street, the scene cuts to him already getting into the cop car, and we never see his left hand or below his waist, so he could still have it with him.
The Gang Runs for Office - S2-E8
Continuity mistake: When Mac is sitting in the back of the cop car and the black cop is talking about how people don't take kindly to being called a nerd, there is a red car driving up behind them. When the camera pans out it has become a white SUV. (00:21:40)
Charlie Goes America All Over Everybody's Ass - S2-E9
Continuity mistake: At the beginning, the position of Dennis holding his cigarette changes between shots. For example, when Dee says "thank you", Dennis is putting the cigarette down, and then in the next shot when Charlie walks in, Dennis has his hand back up and is putting the cigarette down again.
Dennis and Dee Get a New Dad - S2-E10
Continuity mistake: When Mac is eating the peanuts there are no crumbs next to the bowl and his beer. When he lifts up his beer to tell Dennis that it's irrelevant there are crumbs. When the shot zooms out to Dee on the computer, the bar is clean again. (00:00:20)
Dennis and Dee Get a New Dad - S2-E10
Continuity mistake: When Dee tells the gang someone is contacting her claiming to be their dad, only one coffee cup is next to Dee, on the side closest to Mac. She lifts that cup and puts it towards her lap, but when the camera shows the computer, the cup is back and another cup is on the other side of the computer. When the camera zooms out both cups are gone again. (00:00:30)
Dennis and Dee Get a New Dad - S2-E10
Continuity mistake: Dennis walks up to the computer to see the guy claiming to be their father carrying nothing, he puts his empty left hand on the bar, but when the shot switches he is holding a coffee in that hand. In the shot right before the opening credits the coffee is gone again. (00:01:00)
Dennis and Dee Get a New Dad - S2-E10
Continuity mistake: When Frank is flipping out in the restaurant asking if anyone has any illegitimate children with his wife, there is a blue bottle on the table next to him. In the next shot the bottle has disappeared. (00:05:00)
The Gang Gets Invincible - S3-E2
Continuity mistake: When Mac and Dennis are talking to Doyle on the bus, watch the background outside of the window. Every time the camera cuts back and forth, the background changes. The most noticeable change is near the end of the scene, when the background changes from trees and shops passing, to suddenly the side of a bridge passing.
The Gang Gets Invincible - S3-E2
Continuity mistake: At the start Charlie's fairly clean-shaven, then when they all sit in the park after agreeing to get some fresh air, he's got his usual beard / heavy stubble.
Dennis and Dee's Mom is Dead - S3-E3
Continuity mistake: At the beginning, when we first see Dee, her tray doesn't have any bottles on it, but in the next shot, she now has at least 2 bottles on the tray (next shot we see 3) from cleaning up that should wouldn't have had time to pick up.
The Gang Gets Held Hostage - S3-E4
Continuity mistake: When Frank and Charlie are coming out of the vent and onto the roof there is no gun taped to his upper back, he walks up to the Mcpoyles and a gun is magically taped there. (00:19:40)
The Gang Solves the North Korea Situation - S3-E6
Continuity mistake: When Mac walks in with the duster, the red ashtray on the bar is sitting flat. When Dee is stating "That parts simply not true," the ash tray is fallen at an angle, it switches back to flat when Dennis joins the conversation, and then back to an angle when Frank tells the gang it's the North Koreans. Then it's back to flat one more time before the opening credits. (00:00:40 - 00:01:50)
The Gang Solves the North Korea Situation - S3-E6
Continuity mistake: Sun-Li disappears when the camera angle changes. (00:20:58)
Mac is a Serial Killer - S3-E10
Continuity mistake: When Dee is explaining that her and Dennis are going to just take the tools because her neighbor Gary is in love with her, Dee's hands are empty. When the shot switches to Dennis saying, "That works," she has a big silver wrench. (00:11:25)
Dennis Looks Like a Registered Sex Offender - S3-E11
Continuity mistake: After Mac's dad crosses the first name off the list, he folds the paper back up and caps the sharpie. In the next shot, he's folding the paper and capping the sharpie again.
Bums: Making a Mess All Over the City - S3-E14
Continuity mistake: When Frank, Charlie, and Dennis are in the cop car at the red light, they're on a one-way street, with cars parked to their left (facing the same direction as the cop car). However, when it cuts to Frank, we see a car drive by in the opposite direction, and the parked cars are gone.
Bums: Making a Mess All Over the City - S3-E14
Continuity mistake: At the end of the episode, when Charlie leaves the envelope marked "4 the Mare" outside the Municipal Building, as he walks away we see a janitor come by and throw the envelope away. However, seconds later when Charlie jumps into the air, we see the janitor walk and bend to pick up the envelope again.
Bums: Making a Mess All Over the City - S3-E14
Continuity mistake: When we see the cop car, none of the black panels have markings on them. When we see the car burning at the end, the rear black panels have markings on them.
Mac and Dennis: Manhunters - S4-E1
Continuity mistake: In the beginning when Frank takes the plates of meat away and sets them on the bar counter, the newspaper that Mac lays down changes pages during various shots, the items on the plates shift too sometimes.
Continuity mistake: In the scene in the bar, when the lights go out, when they come back on, Dee's handbag is first seen on the floor in front of her. Then, in another shot, the bag is shown behind her. (00:15:03)