Day 4: 3:00 P.M.-4:00 P.M. - S4-E9
Continuity mistake: In the previous episode, when Jack and Tony try to stop the helicopter, they drive off the road and hit the front bumper and lose their front license plate. This is also visible in this episode as Jack and Tony wait for backup and when they drive off there is still no license plate, but about 8 minutes later, when they arrive, the license plate is back on. Since the show is in real time and they arrived in the exact time they said they would, they couldn't have stopped to get it fixed or anything.
Continuity mistake: When Keith Palmer and Carl Webb meet they stop walking around to talk. When we see Carl's face, the sun is coming from behind him, the light shimmers through his hair and the light reflects on Keith's face. Than it cuts to a view from behind Carl, and there is suddenly no light, both stand in the shadow. (00:34:00)
Day 2: 7:00 A.M.-8:00 A.M. - S2-E24
Audio problem: In the french-dubbed over version, in the last seconds of the episode, just after Palmer has fainted and the camera is zooming out and the sound is fading, you can just make out his secretary shouting "Help", in english.
Day 2: 6:00 A.M.-7:00 A.M. - S2-E23
Revealing mistake: When Michelle is in the van, waiting for the computer to finish analysing the conversation between Alex Hewitt and Sherry Palmer, the computer bleeps to says it has "heard" enough of the conversation to be able to recreate Hewitt's voice. How ever, it bleeps whilst Sherry is in the middle of talking. The computer should have made the noise about 15 seconds before.
Other mistake: Sometimes the characters refer to Operation Nightfall as taking place in Bosnia while other times it is referred to as taking place in Kosovo.
Day 7: 8:00 AM - 9:00 AM - S7-E1
Continuity mistake: When Alan Tanner shoots Gabriel Schector, three shots are fired, but four bullet holes are visible in the window.
11:00 A.M.-12:00 Noon - S1-E12
Visible crew/equipment: When Alberta is in holding room 2 with Tony, there is a camera visible to the left of the screen, behind Alberta. You can see it three times during their conversation. (00:21:50)
Day 8: 1:00 P.M. - 2:00 P.M. - S8-E22
Continuity mistake: Day 8: 1:00 p.m.-2:00 p.m: When Chloe frees Cole from the detention cell she closes the door behind her. But once they're finished talking and they turn to leave the door is suddenly open again.
Continuity mistake: In the scene where the CTU tactical team arrives at the 'lz', the chopper that first makes ground contact is marked "CTU-1", and offloads six federal agents in full tactical gear. Later in another shot of the same scene, you see "CTU-1" marked on a second chopper still circling in the air. It's clear this is not the same chopper as before, as we see the first "CTU-1" on the ground again moments later.
Continuity mistake: When Reed walks into the room for the telecast rehearsal, and heads toward the podium, the woman with the blonde ponytail stands both at the podium and behind him in these shots.
11:00 A.M.-12:00 Noon - S1-E12
Character mistake: Eli asks Rick, "Who was that guy I talked to? It was her father, wasn't it?" In the previous episode, Jack says, "I'm the last thing you will ever see if anything happens to my wife or my daughter." You'd think Eli would have registered what Jack said.
Day 8: 9:00 P.M. - 10:00 P.M. - S8-E6
Factual error: The bad guys talks in German to Jack Bauer, posing as a German weapon dealer. But the German dialogue is very hard to understand, full of errors and with heavy accents - especially from Jack. After the first sentence his cover would be blown. (00:32:40 - 00:33:15)
Day 7: 4:00 PM - 5:00 PM - S7-E9
Other mistake: When Morris drops Chloe off at the FBI, he asks if she's sure she doesn't need his help. In the subtitles, Morris' name is incorrectly displayed as "Miles".
Continuity mistake: When Kim waits as Teri is getting raped, she changes shoes from one scene to the next. First she's wearing flats, then wedge sandals.
Day 7: 1:00 PM - 2:00 PM - S7-E6
Factual error: Mid-air collisions are almost always prevented by Airborne Collision Avoidance Systems which have been incorporated in all commercial aircraft since at least 1973. These systems are independent of ground control. These planes would not have collided.
11:00 P.M.-12:00 Midnight - S1-E24
Continuity mistake: There's dialogue between Palmer and Novick in a hotel room with blinds pulled shut over the windows which leads up to Palmer asking, "Tell me again what I've been doing, Mike?" To which Novick responds, "Telling the truth." At this point the camera pans from Novick to Palmer before going into a cut-shot closeup of Palmer. Now look carefully at the background. The curtains are lit up from behind by sunlight. Keep watching. As the closeup shot pans slightly, you can see a sunny day and a building outside of an open window. This scene is supposed to take place less than an hour before midnight and with Senator Palmer hidden away from sight in order to maintain the ruse of his "death" in the explosion. (00:09:00)
Day 7: 2:00 PM - 3:00 PM - S7-E7
Revealing mistake: Samantha Roth's dead body is obviously played by a body double.
Plot hole: Day 8: Renee mentions that after her previous sting operation with the FBI against Vladimir Laitanan, he had major facial reconstruction surgery, but in all of the photographs of said operation she shows CTU New York, Vladimir looks exactly the same as he does now.
Day 7: 5:00 PM - 6:00 PM - S7-E10
Revealing mistake: Chloe says that the drive containing all of Dubaku's corrupt U.S. contacts is a PX-17 drive, but in the closeup of the drive, it reads "PX-3". (00:22:15)
11:00 A.M.-12:00 Noon - S1-E12
Continuity mistake: Mike Novick and Senator Palmer are outside the car at Dr Ferragamo's office building when his office explodes. As they get back in the car, you can see over the shoulder of whichever gets into the rear, passenger-side. There is no one in the driver's seat, but when Palmer says, "Let's go," the car moves off immediately. (00:30:25)
