Continuity mistake: When Homer is eating a krusty burger you can see crumbs on his face, but in the next shot of him talking the crumbs have vanished.
Other mistake: At the end of Marge's video message to Homer, Marge explains she taped the message over their wedding video. The video then shows the remainder of Homer and Marge's wedding. This is inconsistent with The Simpsons' Season 3 episode "I Married Marge" and Season 8's "A Milhouse Divided," which show Homer and Marge marrying at a chapel on the state line and later Homer and Marge alone eating cake together in a parking lot.
Continuity mistake: When Marge is in the kitchen trying to figure out the meaning of "a thousand eyes", behind Grampa there are three spoons hanging from hooks, but when Marge tells Homer that the warning in church was about the pig, the spoons have vanished and instead there are three cups hanging in their place.
Continuity mistake: When Marge is in the kitchen with Grampa wondering what "a thousand eyes" can be, over the telephone there's a notepad with writing hanging from a clip, but when Homer walks in with the pig the notepad is hanging from a string and the writing has disappeared, but then it switches back again.
Continuity mistake: When Homer and Bart are on the roof attempting to fix the shingles, Homer's wearing a tool belt around his waist with assorted tools, but when Homer shakes the antenna his tool belt has vanished (Homer's belly cannot hide that tool belt), but it reappears when Bart's hanging onto the gutter.
Continuity mistake: When Homer runs into the EPA supply shed to find something to help him climb the dome, there's a window on each side of the doorway with little space between them, but in the interior shot not only is the style of window different, the space has increased significantly and the second window is gone.
Continuity mistake: When Bart is inside the gas station market, while Homer pumps gas, Bart puts the soda pop can directly on the counter beside the white mat, but in the next shot, when Bart turns around the can has moved itself onto the mat, at the farther end.
Continuity mistake: When the Simpsons are staying at the Red Rash Inn, there's an air vent on the wall near the door, which appears and disappears between shots.
Continuity mistake: When the Simpsons first get to the spherical cage at the carnival, the truck is parked with its front facing forward and its back end facing away, behind the ride. However, when Homer gets in and drives away, the truck has turned about 90°, with its back end now facing the ride perfectly.
Continuity mistake: After Bart has caused the avalanche in Alaska, the animals help Marge and Homer have a special moment, and when the couple join hands note the large window beside the TV, which just vanishes in the following shots of that bedroom.
Continuity mistake: When Homer drives toward the small Alaskan booth, on the road there is a single line of broken yellow lines leading to the booth, but when Homer hugs the booth guy the road is visible and there are double lines consisting of a solid line and broken lines.
Continuity mistake: When Homer is driving toward the small Alaskan booth, right beside the booth there is a tall flagpole with two raised flags, but when they leave the flagpole has vanished, though it should be seen in this shot since it's on the same little 'island' as the booth. Also note that the snow on the booth and island has vanished.
Continuity mistake: When Russ Cargill shows the President the surveillance footage of domed Springfield, the President's desk is only a few feet away from the fireplace, which is absurdly closer than in any other shots.
Continuity mistake: Right before Homer yells out of his bedroom window, when the shot moves forward, passing through the large angry mob, we see the mob walking down the street which is perpendicular to the front of the Simpson house (not the street in front, that runs parallel to his house). The problem is that after the dome was placed, when Homer screamed in the backyard, there was an overhead shot that zoomed out and we saw there are homes across the street from his house, no perpendicular street.
Continuity mistake: After the book knocks over the AA meeting's coffee machine, when the group of people run out of the church, the ground in front of its doors is flat and leads straight to the walkway. Additionally, there is a second large area of grass between the sidewalk and the street, and the large cross at the front is gone. However, in previous and following shots there are stairs at the front of the church, and the area of grass only between the church and sidewalk/street.
Continuity mistake: With the second set of options spread across the desk, when Cargill starts manipulating the President's option choice, there is a blank wall to the President's left (the wall faces the viewers). Also note that in this shot the table behind the President (with framed photos) is gone. When Cargill walks away from the President holding 'option 4', that blank wall now has a built-in bookcase, a table and chair.
Continuity mistake: There is a blue Presidential flag behind the President, with windows on both sides of that blue flag, but after viewing the security camera footage of domed Springfield, the window on the far end has become a solid wall. That window returns when Cargill influences the President's choice of options.
Continuity mistake: When Russ Cargill spreads the second set of the five options across the President's desk, the Oval Office background is actually backwards - note the ship painting over the fireplace and pictures on the wall. The background keeps flipping between being backwards and the correct way until 'option 4' is chosen.
Continuity mistake: When Nelson punches Milhouse in the stomach, there is a hose hanging below the window attached to a spigot, and the front door has two grooved panels on it, but when the dome approaches and Milhouse swallows his inhaler, the door is flat and smooth, and the hose, its holder and spigot have vanished and been replaced with a bush.
Continuity mistake: When Homer leaves the bar Eski-Moes (in Alaska), he catches hold of a truck, which propels him up the hill in front of his cabin. However, he runs outside a few minutes later and floats away on the heart-shaped iceberg, which has suddenly appeared on a lake that was never there before. The road that the truck was on earlier is gone.
Answer: I believe the joke is supposed to be that the way Texans speak is a language all its own.
Damian Torres