Hank's Unmentionable Problem - S1-E6
Continuity mistake: At the doctor, Hank's old teacher Mrs. Macintosh steps out of a door, and Hank is next to her. In the next close-up shot, Hank is suddenly closer to the old lady. Also, the frame around the window of the door gets larger between shots. (00:09:39)
Hank's Unmentionable Problem - S1-E6
Continuity mistake: Bill and Hank are talking outside, and then Dale walks up to ask Hank if he's tried squatting. Hank opens his mouth part of the way in this shot, but then it cuts to a close-up and his mouth is closed. He turns to look at Bill, mouth still closed, then it cuts back to a wide angle and his mouth is open again. (00:04:25)
Hank's Unmentionable Problem - S1-E6
Continuity mistake: Bill tells Hank to not be embarrassed about his constipation, and Hank is holding his beer can where his finger is over the top of the label. Then in the next shot, his finger is suddenly lower with more of the label and logo showing above it. (00:04:08)
Other mistake: At the prison, Bill meets Alicia, the same woman who gave Leanne a ride to the Hill house in Season Two ("Leanne's Saga"). Same voice, tattoo on the arm, and general appearance. Alicia tells him that she was in prison for killing her boyfriend. So it's odd that she was free in Season Two. Most likely, a sentence for homicide or manslaughter would be at least five years, and that much time has not passed. Otherwise, Bobby, Connie, and Joseph would be in their late teens.
Other mistake: When Boomhauer sees Katherine at the gas station, she says, "It's been twelve years." When Hank talks to Boomhauer in his garage, he mentions Boomhauer breaking up with Katherine twenty years ago.
Other mistake: The premise of this episode makes no sense. Bobby and Connie have previously spent a lot of time together and/or with Joseph. They were also shown on "dates", i.e. the high school dance where No Doubt played. Basically, they were a steady junior high/middle school couple. However, in this episode, they are suddenly "too different" and can barely get through a few dates together.
Plot hole: Amazing that neither Hank's mother nor father ever saw the bandage on the back of his head, peeled it off, and would discover his tattoo.
Other mistake: In this episode, Peggy is terrible at gardening. In the fourth season, she brought flowers to the man who was making foot fetish videos. She said that the flowers were "so pretty" and were from her "own garden."
Other mistake: Dale laughs at Nancy for picking up the diazinon, instead of the bird repeller gel. He then picks up a bag, goes up the ladder, and when he turns the bag around, it says diazanon on the bag he picked up. The only gel in the scene was what Nancy picked up.
Continuity mistake: Peggy's sitting on the couch in her teacher's garb. Yet moments later when she and Bobby rush outside she's back in her usual outfit.
Deliberate mistake: Luanne gets pregnant at the end of season 10 and gives birth in this episode. However, despite the passing of several months being implied through various storylines in the interim, she does not have a pregnant belly until this episode. The rest of the time her stomach was as flat as it usually is.
Lucky's Wedding Suit - S11-E12
Plot hole: In the previous episode, Bill had completely bulked up and then suffered a ruptured rectum, which would sideline him for six months. He remarks that by the time six months pass, all his muscle growth would be gone. This episode shows him to be back to his regular physique, and given the fact that it was established earlier in the season that Luanne was pregnant, the fact that she has no visible baby bump (her belly is still completely flat) suggests six months have not passed, meaning Bill could not have reverted to his flabby physique so quickly.
Bills are Made to be Broken - S4-E3
Continuity mistake: When Hank and Bill are sitting on the hood of Bill's car and talking, one shot of the football field shows it to only be about 70 yards long between the end zones.
Continuity mistake: Hank, Bobby and Peggy are eating at Sugarfoots. On their table, there is a mayo container. Peggy starts talking, and then it shows a close-up of Hank. Then there is a shot of the table again. This time, there is a mustard bottle in the same position and shape as the mayo. The mayo is gone.
Meet the Manger Babies - S2-E12
Continuity mistake: While Hank and his friends are watching the game, right before Bill says, "Yes! Made it to the commercials!" he wipes his hands on the couch and leaves a mess on it, but when he is imitating the football player's touchdown dance, you can see that the mess is gone.
Three Coaches & a Bobby - S3-E12
Continuity mistake: When Hank sees Coach Sauer driving his car on the field, you can see Sauer's car has a red front bumper. When we see the front bumper again a few shots later it is grey. (00:15:30)
Three Coaches & a Bobby - S3-E12
Continuity mistake: If you look carefully during Coach Sauer's training run while Bobby is running down the stands, you will quickly see the mud disappear on Bobby's face and reappear in the next frame. (00:08:35)
Love Hurts and So Does Art - S3-E18
Plot hole: There's no reason Hank or Peggy can't call the deli owner and tell him not to sell any more food to Bobby once he contracts gout.
Suggested correction: Bobby has generally earned his parents' trust. He might get into trouble occasionally, as many pre-teen boys do, but not so much that Hank and Peggy need to cover all the bases. They believe that he stopped going to the deli. As Peggy tells Connie, "He is doing everything he can to get back on his feet in time for that dance."
Continuity mistake: When Dooley is saying "She still wants to dance," Clark is standing next to him and they are roughly the same height. When the shot changes, Clark is suddenly a few inches shorter than Dooley.
Take Me out of the Ball Game - S3-E24
Factual error: Near the end of the episode, Dale Gribble saves Team Strickland by catching a home run ball, hit by Kurt Bevacqua, with his hat. This wins them the game. However, according to the MLB Rulebook, if a player catches a fly ball with their hat, the batter takes three bases, meaning the game would continue and Bevacqua would be at third base. (00:21:00)
