Corrected entry: Across episodes, especially the earlier ones, the color of the lights around KITT's voice modulator change. Sometimes they are all red, sometimes the top four (AIR, OIL, S1, and S2) are orange while the lower four (P1, P2, P3, and P4) are red, and so on. Most notable is S1 and S2 trading colors with P1 and P2.
Knight Rider (1982)
1 corrected entry in show generally
Knight Rider [Pilot; a.k.a. Knight of the Phoenix] (1) - S1-E1
Continuity mistake: If you look closely at KITT throughout the pilot, the position of his scanner lens changes from being the normal scanner that we're all used to, and the scanner being at the very tip of the front bumper. (The latter case is because the car was used for a promo shots to sell to NBC, and after the show was picked up, they changed KITT's look, but still used the earlier shots).
Knight Rider [Pilot; a.k.a. Knight of the Phoenix] (1) - S1-E1
Devon Miles: Welcome aboard the Knight 2000.
Michael Long: Thank you. What's all this? It looks like Darth Vader's bathroom.
Devon: It's a one-of-a-kind car, Mr. Long. It is the fastest, safest, strongest car in the world. It is also completely fuel-efficient and it is operated entirely by microprocessors, which make it it virtually impossible for it to be involved in any mishap or collision. Unless, of course, specifically so ordered by the pilot.
Michael: Pilot? Don't tell me this thing flies.
Devon: No, but it thinks.
Michael: It thinks? My car thinks?
Devon: We like to think of it as our car.
Trivia: The scenes showing the rock slides to form a dam to stop the flood were taken from the 1978 movie, Superman. (00:45:55 - 00:46:25)
Sky Knight - S4-E4
Question: In Goliath Returns, K.I.T.T. sky dives off the cliff. So why is he so afraid in Sky Knight?
Answer: KITT didn't choose to go off the cliff in Goliath Returns, it just happened as he tried to avoid Goliath. Just 'cus it happened, doesn't mean It's gonna cure his fear of "flying"
Correction: Yes they do change between some episodes. That is because in many episodes Bonnie installs some new device into KITT or makes some change to him or rebuilds him or something like that. Thats why they change.
Mister Ed