After Sue Ann records her new song a band member leaves his guitar leaning on a red chair. Another member begins to step over it. The guitar and chair are then missing, but back in the following shot.
The boys get ready to fight 3 guys in the bar. Hutch begins to take off his serape. The tussle begins and Hutch is now wearing the serape.
Tabor reveals his neck scar to Sue Ann. The scar pattern is completely different in the close-up shot.
Its shadow can be seen top right when Starsky is cuffing Jerry Tabor, and telling him he's a sick man.
Starsky and Hutch claim they have no clue who is stalking Sue Ann, but the stalker was in the recording studio with Sue Ann. She saw him touch the recording booth glass, recording equipment and door handle etc... S and H should have had the place fingerprinted.