The helicopter seen in the beginning is a rather rare Fairchild-Hiller FH-1100. These are very similar looking to the Bell 206 JetRanger and are often mistaken for one.
Maggie: Get lost! I'm warning you, this bag is full of mace.
Michael Knight: I stayed in my car so I wouldn't scare you.
Maggie: Well ain't you the David Niven?
When the thieves first look inside kitt the knight logo is missing from the steering wheel.
When this was originally aired, Larry Anderson's real voice was used for Michael Long. In subsequent airings, David Hasselhoff's voice is dubbed over.