Continuity mistake: Deacon says "How do we know cutie-pie isn't cutie-guy?" then crosses his arms. In the next shot his arms are immediately uncrossed and on his hips when Doug replies. (00:06:00)
Revealing mistake: In the kitchen, Deacon asks Doug, "Are we gunna play basketball or what?" while leaning against the counter. In this shot you can see the kitchen wall is on an angle slanting away from the camera. This makes the kitchen look bigger and cuts down on the empty stage space on the wall where the cameras are. (00:07:00)
Fresh Brood - S8-E12
Other mistake: When Danny comes in with the baby and says nothing about it, Doug says, "Gare, what's goin' on?" Danny is played by Kevin James' real brother Gary Valentine. (00:02:45)
Visible crew/equipment: In the opening scene, when Doug almost sits on Arthur, you can see part of the blue mat that Doug rolls Arthur off the couch on to.
Emotional Rollercoaster - S8-E19
Visible crew/equipment: When Carrie steals Doug's grabber then leaves the kitchen, a boom mic shadow moves on the cupboard beside Doug twice. (00:05:25)
Continuity mistake: When Doug and Carrie are in the living room talking about Doug not going out with Kelly again, he has the phone in his hand, gets upset and throws the phone down. Then Carrie is going to call Kelly for Doug, and when she goes to pick up the phone, it's placed perfectly back on the hook when it should be hanging near the floor from the way Doug threw it.

Visible crew/equipment: When Doug is getting a lift from the Priority Plus driver after being rescued from being stuck in the drive-thru, you can see the camera truck (the truck they use to film exterior road/driving shots) in the reflections of the glass windows of buildings behind Doug when the camera cuts to him.
Visible crew/equipment: In the scene where Doug has been bubble wrapped and dumped out in front of IPS, Deacon leans over talking to him and you can see a boom mike shadow over Deacon's shadow in the background.
Continuity mistake: In the episode where Priority Plus is mentioned, after the Priority Plus driver has got Doug Out of the drive through, he gives Doug a lift in his truck. In some shots there is a window on the side of the street. In the window there is no Priority Plus truck visible.
Visible crew/equipment: Doug, Deacon, and Danny are at their lockers towards the end of the episode, and Deacon says, "Me and Danny gotta do another half shift tonight." Camera cuts, and a boom mic can be seen at the top of the screen.
Continuity mistake: Carrie enters and says "Bad news", to which Doug replies, "Ya, if it's about being out of mini donuts, I'm aware and I'm not happy". However, in S7 E7 "Offtrack...Bedding" at the start of the episode Doug says he doesn't like mini donuts. (00:00:30)
Continuity mistake: When Doug is in the porta-potty you can see a tree outside the window to the left; however when Doug looks out the window we can see their are cars parked on the side where the tree was. (00:12:40)
Suggested correction: Not really, the shot where the tree can be seen is viewed from the front so the tree is actually behind the porta-potty to the left. The view to the cars is directly looking left.
Continuity mistake: When Doug jumps out of the porta-potty before the rival ice-cream truck smashes through it, the door is open and Doug immediately lands on the ground; but when the shot changes, the porta-potty door is closed and we can't see Doug rolling onto the ground. Also, when the truck smashes into the porta-potty, liquid splashes everywhere; but when we see Doug in the next shot he is dry and no liquid on the ground around him. (00:12:55)
Visible crew/equipment: When Carrie is sitting on their bed talking to Doug about falling in love with her pretend (model home) family, you can see the shadow of a boom mic move on the closet behind her. (00:13:25)
Affair Trade - S9-E2
Continuity mistake: When Doug and Jessica run into Carrie in the parking lot at the Dr. Heffernan office, there is a man walking up from behind them with grey hair. In the next shot he instantly appears beside them unrealistically fast. (00:19:20)
Visible crew/equipment: When Doug and Carrie are talking about the sketch of Carrie on the fridge and Doug says, "Man, he's got some skills" (talking about Major), a boom mic is visible at the top of the screen.
Continuity mistake: When Danny interrupts Deacon and Kelly's dinner the couple retreat to their bedroom, and while Spence mumbles to himself as he clears the plates, in the closeup he places some plates on the pass-through shelf, but those plates have vanished in the next wide shot.
Home Cheapo - S9-E7
Continuity mistake: The Home Cheapo Series: In the scene where Deacon, Kelly, Carrie and Doug are silently debating over who will pay the bill, Doug pushes the bill over to Deacon and it lands diagonally in front of Deacon's beer. In the next shot the bill has changed positions without being touched.
Home Cheapo - S9-E7
Continuity mistake: When Carrie finds out that Kelly and Deacon have afforded a lakeside house, she makes reference that Kelly doesn't even work. But in the previous episode ("Brace Yourself"), Kelly has a job. They even need to hire Spence to help out.
Suggested correction: What if she quit the job, her employment was terminated, or it was a temporary/seasonal position?