You Better Shop Around (2) - S5-E22
Revealing mistake: When Marcy is stacking the cartons of eggs in her arms, you can plainly see that they are empty cartons.
Just Married ... With Children - S2-E20
Other mistake: Al gets sat on by 3 heavy women. The scale says 927 pounds. 4 more women sit down and the scale says 1071. So 4 more heavy women only added 144 pounds? Impossible.
Just Married ... With Children - S2-E20
Other mistake: Al and Peg win a new Mustang in this episode. It's never seen again.
The Hood, the Bud and the Kelly (2) - S10-E15
Revealing mistake: Whenever Al or Jefferson falls off the roof you can plainly see it's a dummy wearing their outfits.
Chicago Shoe Exchange - S11-E24
Factual error: When Kelly and Jefferson are driving Bud to the chiropractor and puts him on the roof of the car, as they are driving palm trees are lining the road. There are no palm trees in northern Illinois anywhere, let alone lining roads.
Factual error: Bud goes to Marcy's bank to cash his college grant check for $25,000. She gets side tracked by Jefferson, takes the check, then gives Bud his own checkbook. Bud leaves the bank and Al and Peg come in and make a deposit on his college fund. The teller gives them a receipt showing there's $25,000 in the account. Not possible considering Marcy has the check and with a check that big, there's a wait period.
Continuity mistake: Marcy tells Peg that Steve has been gone for 5 days. Yet when he gets home, he has grown a full beard. It would take longer than 5 days to grow a full beard like that.
Eatin' Out - S3-E11
Revealing mistake: At the end of this episode, Bud supposedly has a lemon frozen to his mouth but he plainly is just biting down on it. Then Al uses his lighter to "unstick" it, but Bud just spits it out.
Factual error: Al gets hired as a bartender despite having no liquor license and not having taken the course required to become a bartender.
Suggested correction: Depending on the bar all you need is a diploma or GED and be old enough per the state's laws.
Continuity mistake: A lady agrees to buy some of Peg's red hair. It shows the lady with two baggies with red hair in them, but at the end of the episode we see that they used Buck's hair, which is far from being red in color, or anything like human hair.
Flight of the Bumblebee - S10-E7
Continuity mistake: Jefferson mentions having Thanksgiving dinner at Marcy's father's house. Yet, in the pilot, it's mentioned he's dead, as well as her two stepfathers.
Revealing mistake: When Kelly goes for her commercial, you can see that there is a stocking head cover to make her appear bald.
Visible crew/equipment: When Buck is sitting on the couch before Al and Bud come back, the shadow of the camera boom can be seen moving on the stairs.
Continuity mistake: In this episode Al is building a dog house for Lucky. In Season 9 episode User Friendly, we are shown that there already is a dog house, which has electricity and a light.
Girls Just Want to Have Fun (1) - S2-E5
Continuity mistake: When we first see Peg and her friends at the kitchen table the fridge door is closed. Steve comes in with flowers and the door is open. He goes into the kitchen and it's closed.
Have You Driven a Ford Lately - S1-E5
Continuity mistake: Marcy gets two cans of soda for her and Peg to go with their salad. Camera changes shots and it's now two glasses of soda.
Visible crew/equipment: When Al and Jefferson are knocking down the door with Bud, the shadow of the camera is visible on the wall for a second or two.
Im-Po-Dent - S2-E19
Revealing mistake: Bud and Kelly put Tang in glasses. Al says "what are you hiding?" They quickly "drink" it but the glasses are empty.
Sixteen Years and What Do You Get - S1-E6
Other mistake: Al has his elbow in the caviar yet when he lifts it up out there's nothing on his shirt. Its clean and dry.
Continuity mistake: Steve comes in the back patio door and closes it. When Kelly gives him the house key you can see in the background that the door is open.