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- Opening narration: Knight Rider. A shadowy flight into the dangerous world of a man who does not exist. Michael Knight, a young loner on a crusade to champion the cause of the innocent, the helpless, the powerless, in a world of criminals who operate above the law.
- Closing narration (Season 1 only): Michael Knight, a lone crusader in a dangerous world, the world...of the Knight Rider.
- Extra closing narration (Season 1 only): One man can make a difference, Michael.
Michael Knight 
Michael: Yo, Devon!
Michael (speaking to K.I.T.T.): Take over, Buddy!
Michael (speaking to K.I.T.T.): Keep your scanners peeled, pal!
Devon Miles 
(Upon capturing Colonel Kincaid)
Devon: Michael, don't you realized what you have done? You've caused me a great deal of difficulty. You've embarrassed me, you've...
Michael: Devon, meet Colonel Kincaid.
Devon: You saved me a great deal of paperwork.
(Explaining K.I.T.T's primary directive to Michael)
Devon: It wouldn't harm you I assure you. It's primary function is the preservation of human life, your life.
Michael: By "me" you mean anyone driving this thing?
Devon: No, I mean you specifically, you Michael Arthur Long
Devon: I would have preferred you to let me open the door, first. However, as you see, no harm has come to the car.
Devon: Well, Wilton. He's doing everything you said he would. What have you gotten me into??
Michael & K.I.T.T. 
K.I.T.T.: Yes Michael?
Michael: Shut up.
Michael: Keep your scanners peeled.
K.I.T.T.: Right away Michael.
(Upon destroying K.A.R.R.)
K.I.T.T.: If I say yes, will you promise we'll never have to do that again?
Michael: Never say never pal. Never say never.
K.I.T.T.: If you're going to go through with this, may I suggest you permit me to activate the Turbo Boost?
Michael: The what?
K.I.T.T.: Never mind! Allow me to demonstrate!
K.I.T.T.: I'm the voice of the Knight Industries Two Thousand's microprocessor. K-I-T-T for easy reference, K.I.T.T. if you prefer.
K.I.T.T.: Be careful Michael.
K.I.T.T.: Michael, look out!
K.A.R.R.: I am the Knight Automated Roving Robot, K.A.R.R. if you prefer; I am the prototype of the car of the future.
K.A.R.R.: I am the prototype of the car of the future. What you saw was merely an inferior production line model, a pale copy of the original.
K.A.R.R.: If I am destroyed... so shall you be!
K.A.R.R.: I will not go back to the slammer!
K.A.R.R.: I have no eggs. Perhaps you can direct me to a chicken?
K.A.R.R.: I have checked my data on basic human desires, therefore i understand your needs. You wish to eat. You wish to drink. You wish to reproduce. Which one first?
Knight Rider 2000 
K.I.T.T. (describing the Knight 4000): There’s nothing worse than a smart-ass automobile.