Continuity mistake: After the dolphin encounter, Hank has water dripping his face. In the very next shot when the camera guy is talking to him and Luanne, the water suddenly stops dripping. The shots were too quick for it to stop that suddenly.
De-Kahnstructing Henry - S3-E13
Continuity mistake: When Kahn parks the car in the garage you can see the driver's window is clear. A few shots later we see the window is now frosted. (00:01:35)
Continuity mistake: In the final classroom scene when Peggy has a mace, she swings it very hard and rips off the cartoon paper on the map of Europe. It then goes to a quick shot of the class and back to her in less than a second. Yet she is now holding the mace steady in her hand, even though you wouldn't be able to stop a mace that soon after swinging it that quickly. The cartoon paper she ripped off has also disappeared. (00:19:20)
Love Hurts and So Does Art - S3-E18
Continuity mistake: After Hank fills up the ice trays and then throws them into the sink, if you look inside the sink you will see they are empty. A few moments later you can see the sinks are full of water without Hank or anyone else filling them up.
Little Horrors of Shop - S4-E4
Continuity mistake: When Dale & Hank are taking a spa in the house Dale is fumigating, Dale gets out of the spa. We see Hank has a headrest behind his head that is pink. The next shot is a close up of Hank's face and the headrest is now a light brown.
Plot hole: As Bill goes to get another beer from the cooler box, he raises the door and a raccoon pops out. The only problem is there is no conceivable way it could have got in without one of them noticing or shutting the door on the cooler. They would have had to close the cooler before bringing it out and the size of the raccoon would have been hard to fit in the box along with the beer without someone noticing. Even if the raccoon had sneaked in the box before or after they brought the cooler out without anyone looking I don't think the raccoon would have been able to get in and put the door back on.
Peggy Makes the Big Leagues - S5-E4
Continuity mistake: When Peggy writes on the board in her algebra class she writes a2= b2 + c2, around the middle of the board. Whilst talking to David the writing moves to near the top left of the board.
I Never Promised You an Organic Garden - S7-E18
Continuity mistake: During the scene where Peggy still finds insects over the tomatoes, she goes to show Hank one of the tomatoes. As she is showing the tomato it has around six or seven flies buzzing around it. The next shot shows Peggy from behind still holding the tomato, and you can see there is not one fly around the tomato anymore.
Continuity mistake: Hank takes Bill's sock off and the guys discover his toe fungus. While they're talking, Hank is still holding the sock. In the next shot of Bill, his sock is back on. (00:02:45 - 00:03:15)
Love Hurts and So Does Art - S3-E18
Continuity mistake: As Hank puts up his football picture in the museum, he places it on the wall. Once he does there is now a pin holding it up at the top of the picture even though he never put a pin there.
Audio problem: As the ZZ top members are trying to convince Bobby about staying in school, there is a distinct microphone error after Frank speaks. When he says "and the presidents", you can hear it quite distinctively. It is as if he spoke too close to the microphone at the end of his sentence.
Returning Japanese (1) - S6-E21
Factual error: As the Hills get off the plane in Japan the camera crew is waiting for them as they exit the terminal however they do not go through any sort of customs area. Every international flight you must go through customs before entering the country.
Continuity mistake: When Allabaster is chasing Hank in his car, he loses the front left hubcap from his car. Just as they go over the speed bump if you look at Allabaster's car when it is in the air for a brief second you can see the hubcap is back on the tyre (more visible in slow motion). Later we see the tyre again and the hubcap is off for the rest of the scene.
Continuity mistake: When Dale is finishing showing his mower after first getting it, it moves between shots. It goes from being right next to Dale to being a good few feet to his right.
Returning Japanese (1) - S6-E21
Continuity mistake: On the plane whilst Bobby is watching the TV in front of him, you can see a man to the left of Bobby and an empty seat to Bobby's right. The seat arrangement looks to be like the middle row of seats where there is 3 seats instead of two. After the shot shows footage for the "Haiku" movie the shot changes to Bobby and the man sitting next to him but there is now no empty seat next to Bobby. It appears that he is now sitting at a window seat.
Three Coaches & a Bobby - S3-E12
Continuity mistake: As Coach Sauers is quitting the shoe store, he rips the whistle off his chest and breaks the neck rope and bangs it down on the counter. When the clerk returns the whistle to him and drops it in his hand, the rope is not broken, as you can see the loop on the rope when it drops. (00:06:50)
Continuity mistake: Whilst Hank is in the hardware store, there is a clock behind the clerk on the shelf. It changes from 7pm to 5pm between the later shots in the scene.
Deliberate mistake: When Dale calls Hank from John Redcorn's trailer, the wooden clock behind Hank (in the Hill's kitchen) has no markings or hands to tell what time it is. This is a mistake as it is the exact same shape and object as it was before this episode and I doubt they replaced the clock with an completely exact object as before. A side note on the mistake is that it may be considered deliberate as the clock in previous episodes is shown frequently in the background and will generally change between shots.
Pretty, Pretty Dresses - S3-E9
Continuity mistake: When Bobby is serving his parents breakfast, the tray he's holding has two eggs on it and Peggy's plate is empty. After Hank finishes talking, we see all three of them and there are now two eggs on Peggy's plate and a third one on the tray. (00:03:30 - 00:04:05)
Peggy Makes the Big Leagues - S5-E4
Continuity mistake: On Peggy's first day of teaching she is called over to the lunch table of some of the other teachers. Other than the woman she first talks to, most of the people at the table keep changing. The first shot is a wide shot of the group of people at the table with the second shot a close up shot of them. Firstly the guy across from her at the table is wearing a green shirt. When she sits down its now a white shirt. The other mistakes is with two of the other people. At the end of the table there is a black guy and the lady in the middle is wearing a dark jacket with black hair. When Peggy sits down the black guy is now white and the woman in the middle is now very old with glasses, white hair and a light purple top.
