Product Placement Blog ➞ 3M3M Littmann Stethoscope in Station 19 S05E03 “Too Darn Hot” (2021)October 15, 2021 Sergey TV Show Hi! On Friday, October 15, I watched a TV Show and product placement was spotted: 3M Littmann Stethoscope in Station 19 S05E03 “Too Darn Hot” (2021).