Product Placement Blog ➞ 3M3M Littmann Stethoscope in 9-1-1 S04E10 “Parenthood” (2021)April 27, 2021 Sergey TV Show Hi! On Tuesday, April 27, I watched a TV Show and product placement was spotted: 3M Littmann Stethoscope in 9-1-1 S04E10 “Parenthood” (2021).