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.
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)
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)
Continuity mistake: When Jack is at the powerstation he checks his watch. It is 19:12:26, and it takes 1 min 57 seconds until we see the timer (yellow clock), which shows 19:13:47 and not 19:14:23 which it should be as the show is in real time. This is only a mistake if we consider agent Jack Bauer's watch as being accurate, but given how time-critical a lot of his work is, you wouldn't expect him to be casual about the time. (00:12:10)
Continuity mistake: When entering the safe-house Nina walks past the lit lamp on a side table. Seconds later when Mrs. Bauer walks past, it is switched off. (00:11:15)
Continuity mistake: The clock just tells the viewer that it is 4:40am. Sen. Palmer interrogates his son about the rape of his daughter. In the room, there is a clock that shows 4:57am instead. (00:27:43)
11:00 A.M.-12:00 Noon - S1-E12
Continuity mistake: When fleeing from the compound, Kim wears running shoes instead of the wedge sandals (or the flats she wore when Teri was raped).
12:00 Midnight-1:00 A.M. - S1-E1
Continuity mistake: When Kim is sitting on the roof of the furniture store she is looking straight ahead. However the camera changes and now she is looking down. (00:18:05)
12:00 Midnight-1:00 A.M. - S1-E1
Continuity mistake: Janet jumps up on a table at the furniture store and is joined by a bloke who proceeds to have a drink from a can of beer. The camera does a quick cut and the drinker's position has completely changed. (00:12:30)
12:00 Midnight-1:00 A.M. - S1-E1
Continuity mistake: When we first see Jack he has his hand up by his mouth and then by his chest. When the camera changes to show Kim, his hand is now lowered. (00:03:30)
12:00 Midnight-1:00 A.M. - S1-E1
Continuity mistake: We see Palmer at the start make the decision not to use the word occasion. When he does, the woman who is writing his speech has her hand off the pad or much further up the pad depending on the angle. (00:03:05)
11:00 P.M.-12:00 Midnight - S1-E24
Continuity mistake: When the officer rings CTU about having Kim, Mason's hand is on his hip them the desk instantly. (00:07:30)
Continuity mistake: After the tracker has been killed, we see Jack holding his handcuffs. Camera changes and his hand is not holding the cuffs any more. (00:40:20)
Continuity mistake: At the start David is giving a speech about winning the primary. There is one point during a split screen where he grabs his microphone. However in the immediate next shot his hands are on the podium. (00:04:10)
Continuity mistake: When Kim hands the phone number to the cop, he takes it in his right hand. As he turns to walk away, its disappeared. (00:23:15)
Continuity mistake: We see Jack and Nina on the escalator and the people ahead of them get off at the top, camera changes to a shot from the top of the escalator and we see the previous 2 people getting off again. (00:21:00)
Continuity mistake: We see a black car driving down the street after the end of the scene between the two Palmers. In this shot you can see the passenger in the back of the car (Andre) is not on the phone. Camera changes to inside and Andre is on the phone. (00:15:50)
Continuity mistake: When Tony and Mason are having words about things being personal, there is one point where Mason approaches Tony and Tony's arms go from on his hips to down by his side instantly. (00:13:10)
Continuity mistake: We see Teri asleep with her head leaning back. Camera changes and now her head is leaning forward. (00:38:30)
Continuity mistake: As Elizabeth turns round to stab Drazen, he already has a blood mark on his shirt before being stabbed. (00:35:00)