Continuity mistake: After Hank and Bobby return from La Grunta, Hank parks the car halfway into the garage. Yet when Peggy washes the blood from the deer off the front of the truck, the truck is now on the driveway and not near the garage. (00:20:20)
Next of Shin - S3-E5
Continuity mistake: As Hank is having his discussion with Cotton in the Casino you can see Cotton's red (playing) chips in front of him. In one shot Hank stands up and the angle shows Cotton from over Hank's shoulder and the red chips look black and badly damaged. The next shot from the same angle the chips are back to being red and completely fine. (00:19:55)
Next of Shin - S3-E5
Continuity mistake: Before Cotton puts down "8 the hard way" on the craps table, there is a beer on the table next to him. After he loses, he gets onto the table and you can see the beer has disappeared and he is not holding it. Even in the final shot through the security camera monitor, the beer is nowhere to be seen even on the floor. Also, Hank was holding a beer before Cotton leaped onto the table and in the security monitor footage he has not put it down on the table and is not holding it as he puts both hands on his head.
Next of Shin - S3-E5
Continuity mistake: During the scene where Hank is talking to Bobby in the garage about the baby, Hank is wearing brown shorts and sitting on a stool. When Hank stands up you can see the top of his pants are now blue, the same color as his usual pants. When Bobby passes in front of him, he has brown shorts on again. (00:11:00)
Continuity mistake: When Peggy brings "Ol' Spanky" to class for the first time, the writing on the blackboard has quite a bit of space to the right of the blackboard. As she is telling of Joseph, the second blackboard is almost right next to the first blackboard and the first blackboard doesn't have the writing on it anymore. (00:13:15)
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.
Three Coaches & a Bobby - S3-E12
Continuity mistake: As Coach Sauers is making them run up and down the stands you can see Bobby with all the mud on his face and body just reaching the bottom of the stand and then in the very next shot hes all of a sudden reaching the top of the stands with Joseph. (00:08:35)
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.
Continuity mistake: During Peggy's visit to Megamart she meets one of her fellow teachers when she is about to go down one of the aisles. When the shot shows Peggy talking, you can now see the aisle of products is now behind her even though she didn't move. At the end of the conversation, Peggy gives the woman a pin and the two of them have now moved again and are at the very end of the aisle that Peggy started in. (00:11:15)
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.
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.
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)
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.
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)
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)
Love Hurts and So Does Art - S3-E18
Continuity mistake: In the medical center as Peggy is filling out the forms there is a sign above Peggy's head. When the shot change to where Hank is taking Bobby into the doctor's office, the sign has moved to a bit below Peggy's head.
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)
De-Kahnstructing Henry - S3-E13
Continuity mistake: When Hank hands Minh the money for Bobby's lessons, he's wearing a watch on his left wrist, but when Kahn storms out of the house Hank's watch has vanished. (00:14:45)
As Old as the Hills (1) - S3-E25
Continuity mistake: Before Cotton asks Didi for a cigar she is wearing a pink dress over a light purple shirt. Whilst she is lighting the cigar she is now wearing an orange top.
De-Kahnstructing Henry - S3-E13
Continuity mistake: During the scene where Hank is talking to Kahn in the restaurant bathroom you can see a black rubbish bin below the hand dryer next to the entrance of the bathroom. About halfway into the scene Kahn starts looking into the mirror and the garbage bin has disappeared. Throughout the rest of the scene the bin never reappears. (00:18:20)
Answer: Jeffrey Boomhauer is a Texas Ranger as can be seen in the final episode at the end when he sets his wallet down, it flips open revealing a Texas Ranger badge.