Continuity mistake: Even after KITT's voice modulator changes to the three bars in the episode "Hearts of Stone," any shot of KITT starting himself up still shows the old voice modulator (a simple red square).
Continuity mistake: When Coach walks out from behind the bar near the start, he's got feathers almost up to his knees. Then when he turns around to walk back, they're now only over his feet. (00:03:55)
Continuity mistake: Steele props up the deceased Kalil and puts a cigarette in the dead man's hand. When the camera angle reverses, the cigarette moves to a different position: first it's between fingers two and three, then it's between three and four. (00:25:45)
Demolition - S1-E1
Continuity mistake: When Rik makes the knocking sign with his hand, in the next shot his hand is on his knee. (00:15:25)
Continuity mistake: After the Battle of Bull Run, Jonas Steele is seen surveying the aftermath. Trouble is, there are a heck of a lot more dead bodies lying around outside the house than there were when the battle was raging, including those of Union soldiers. As the scenes of the battle demonstrated, the Union never actually got as far as the house; all their casualties were incurred on the slopes approaching the house, and then they retreated. (01:53:20 - 01:59:10)
Continuity mistake: Whenever Banner changes into Hulk his clothes rips, only his pants stays on. But when Hulk changes back to Banner, he suddenly has all his clothes on, no rips or tears at all.
Continuity mistake: When the man and his wife are checking out, we see the printer spitting out his bill which reads $1665.90 - yet when the man reads the amount, he says it's $1380.90. Director Mark Tinker comments on the discrepancy in the commentary.
Continuity mistake: In this episode, Mallory and Skippy are talking and Mallory starts a sentence with "remember when we were 2 years old..."? This is incorrect as an earlier season had an episode in a flashback when the Keatons just moved into their house and the kids were young and Skippy meets Mallory for the first time and instantly falls for her. Both Skippy and Mallory were about 5 or 6 years old in the scene so knowing each other at 2 years old was not possible.
Pigeon Post - S1-E3
Continuity mistake: The size of the paper Rene uses for the pigeon grows substantially when Herr Flick find it near the end of the episode. (00:19:45 - 00:29:20)
Me and Mr. T - S1-E4
Continuity mistake: When the teacher is asking the class questions about the declaration of independence, she has some info about it written on the blackboard ending with "1776 in." Then facing away from the blackboard, she asks a question and Mr. T quickly answers and then only a second later, the camera is back on the teacher and suddenly the world "PHILADELPHIA" is on the blackboard under the "1776 in" with no time for her to have written that word in one second.
Heaven Knows Mr. Utley - S1-E19
Continuity mistake: At breakfast Dick is telling Kirk about the U.F.O that George saw. He puts a bottle of syrup down. The shot changes and he is suddenly holding a fork.
Testimony of Evil (Dead Men Don't Laugh) - S1-E6
Continuity mistake: At the start, the glass on the left is poisoned. The guy picks up the glass on the right, but still ends up dying.