At the opening bungalow fire sequence, the 1974 Ward LaFrance Engine 51 featured on EMERGENCY! makes an appearance in an original scene. This engine, quartered at Universal Studios at the time, would appear in new scenes on Quincy several more times in its original 51 markings, including in the episode "Aftermath".
The photo of Jessica Ross holding an Emmy Award is not a prop photo. It's an actual photo of Jessica Walter from when she had won an Emmy as Best Actress from her short lived show Amy Prentiss. In fact, the Amy Prentiss program had been a part of the NBC Mystery Movie franchise just as Quincy, M.E. had started out.