The Order of the Straight Arrow - S1-E3
Continuity mistake: When the park ranger is threatening to arrest Hank after finding them with the bird down by the small dam, the line on his hat keeps disappearing and reappearing as he talks. (00:20:20)
Hank's Got the Willies - S1-E4
Continuity mistake: When Hank is talking to Peggy in the kitchen about his guitar, she is pouring herself a mug of coffee. While the mug is on the counter, it is solid white, but when the angle changes, there's a big pink heart that appears on the mug. (00:03:40)
Hank's Got the Willies - S1-E4
Continuity mistake: In the kitchen, Hank tells Peggy he's going back to bed and asks if she's coming. She says no, and during this moment she's holding her coffee mug by the handle, but in the next shot she has her fingers through the handle, holding the mug itself. Also, the heart on the mug moves, and a red sugar container appears in her other hand. (00:03:45)
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)
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: 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
Factual error: Hank is extremely constipated, but has a colonoscopy. He would not have been able to have a colonoscopy while extremely constipated, having not had a bowel movement in many days.
Other mistake: At Kahn's barbecue, everyone likes the burgers he cooked on his charcoal grill. Peggy is among the people who crowd around the grill. But in the episode "Hank and the Great Glass Elevator", Peggy and Bobby are shocked when they eat a burger that Luanne cooked with charcoal.
Continuity mistake: When Hank is barbecuing and turns the steak over, there are four burgers on the grill. When he tells Bill that the steak is for his father, there are only three. (00:02:50)
Continuity mistake: Bobby takes a bite of his brownie and leaves most of it on his tray when he starts to get up and the teacher comes over to talk about his attitude. A few seconds later, when he and Joseph start slamming their trays on the table, the brownie is gone. (00:17:45)
Continuity mistake: In this episode only, Hank admires his father and defends, or dismisses, most of Cotton's bad qualities. As Peggy says: "You just cannot see your father for who he is." Throughout the rest of the series, Hank and Cotton's relationship is tense and unpleasant. In the episode "The Father, The Son, and JC" (Season Six), Bobby can't even find an old photo in which Hank and Cotton are both happy.
Continuity mistake: Peggy discovers the jars full of fire ants in Dale's basement, and they are moving around inside, rapidly crawling all over the sides. But then, in a wide shot from Dale's point of view, the ants are much more sparse and not moving.
Character mistake: In Episode 1.11, Hank says "McDonnell Douglas L-1011" when it is really Lockheed L-1011. McDonnell Douglas produced the DC-10, which was similar.
