Before Lawson and RC3 have a breakfast meeting, a boat is seen passing the restaurant and sounding its horn. The camera pans across the restaurant where there are female waitresses wearing red jackets and black long sleeve shirts serving people sitting on white chairs.
When you see the scene at the table, there are no female waitresses at all and only guys in red coats serving. All of the chairs are now black.
Michael and Charlie Connors get in KITT in front of the club and appear to drive several miles to get to the bad guys' office. But as KITT approaches the office building, you can clearly see the same music store that was also seen directly adjacent the club which is supposedly in a different part of the city. Evidently, the same part of the studio back lot was used for both scenes.
When Michael walks Charley outside to get in KITT (while New Edition is singing around KITT), a camera and crew member are reflected in KITT's driver-side door.