Product Placement Blog ➞ 3M3M Littmann Stethoscopes in Grey's Anatomy S19E04 “Haunted” (2022)October 28, 2022 Sergey TV Show Hi! On Friday, October 28, I watched a TV Show and product placement was spotted: 3M Littmann Stethoscopes in Grey’s Anatomy S19E04 “Haunted” (2022).