Rockford's picture is taken outside the courthouse, but when it appears in the paper he is standing in front of a black background.
In the night time scene where the police car responds to the burglar alarm, it is clearly a mid-sized 1972 AMC Matador - front blinkers down in the bumper. A few minutes later, it is a full-sized 1973 Ford Galaxie that has the turn signals beside the headlights. It also has larger tail lamps.
Silencers don't work on revolvers.
Doris hands Jim the newspaper and the article is titled "Valley Print Shop Owner Slain" but the article itself fails to mention the print shop and is a collection of repeated paragraphs unrelated to the title.
Jim calls police and says"Lieutenant Becker, please. Becker didn't become a Lieutenant until season 5. This is only season 1.