Continuity mistake: Sheriff Carter has only one Jeep Cherokee for his staff. It constantly changes from a 1989 to a 1990 model throughout the series. This can be caught easily by looking at the triangular window near the hinge on the front doors. Jeep removed the tilting hinges on the window after the 1989 year was discontinued. This happens throughout season one and two.
Continuity mistake: When Sheriff Cobb loses his leg, Allison looks down and we see his leg back from the edge of the hole. The camera moves and we see his leg right next to the hole.
Continuity mistake: When Jack and Zoe are walking into town, the camera is behind them and there are people walking on the sidewalk towards them. The shot changes to alongside them, then when it cuts back the people have vanished.
Invincible - S1-E5
Continuity mistake: The portable physical device that Allison puts on Jack disappears until she takes it off, and she takes off from a different place than where she put it.
Invincible - S1-E5
Continuity mistake: When Jack jumps over the railing on the bridge his feet are on the concrete, the next shot of his feet they are on the railing, then back to the concrete again.
Continuity mistake: Henry talks about Eureka installing it's first traffic light but there has always been a traffic light in Eureka.
Suggested correction: The episodes in the first season were aired out of order. The previous episode that showed the traffic light was produced after "Blink."
The light is in every episode including the first one.
Then I would suggest trying to submit a screen shot because I never saw the traffic light on Main and Archimedes in the first episode.
Continuity mistake: The amount of water in the pitcher on the table that Callister is sitting at changes a couple of time during the scene.
Continuity mistake: When Callister enters Cafe Diem for the first time he keeps walking as he enters. The camera shot changes and he is now standing near the door then begins to walk further in.
Continuity mistake: Series 1, Episode 9: Primal. As Carter and Taggart are crawling through the access tunnel, the torch attached to the side of Taggart's goggles is pointing downwards, below his line of vision as established by the lenses on the front. As the shot changes to a close-up on Taggart, the torch is now pointing forwards, aligned with the lenses. (00:13:50)
Continuity mistake: When they are talking about the power supply Jack has his hands on his hips, except for one shot where they are crossed.
Continuity mistake: When Taggart shoots the pile of skin grafts, it explodes, covering him, Jack, and Jo in guts. There's nothing on Tag's shoulder at first, but after a couple of shots, there is now a slab of skin on his right shoulder.
Continuity mistake: When the toilet at the Sheriff's Office explodes, it slides out into the main office, with no smoke coming from it. Two shots later, it is now emanating smoke.
Continuity mistake: We see that there's a "Do Not Cross" hologram in front of Cafe Diem when Henry arrives to check things out. When the group leaves, the hologram disappears from the outside shot.
Continuity mistake: When Jack, Stark, and Allison walk into the room at G.D. where Martha escaped from Stark is seen putting his hands on his hips twice.
Continuity mistake: When Jack is using the mustard to find Martha, Vincent ducks behind the counter. The shot changes to show just Vincent and he is shown ducking down again.
Best in Faux - S3-E3
Continuity mistake: Henry is showing Zoe how to melt a penny, but in the next shot the penny is not melted.
Best in Faux - S3-E3
Continuity mistake: When Dr. Mendel picks up the beaker with the blue liquid it is almost full, but when he goes to pour it out the beaker is almost empty.
Continuity mistake: When Henry is carving Dr. Nathan Stark in the wall, we see him carve the H and the wall says DR. NATH. As Jack is walking in an A appears after the H.
Continuity mistake: When Jack and Lexi are in the jeep talking a car can be seen in the mirror, but when they pull over no car passes them.
Continuity mistake: When Captain Eureka puts out the fire at the pumping station, Jack's Jeep somehow gets on fire, but we are able to see where the fire went, and it didn't come anywhere near the road or the Jeep.