Product Placement Blog ➞ Diet Dr PepperDiet Dr Pepper in Preacher – Season 4, Episode 2 (2019)August 4, 2019 Sergey TV Show Hi! On Sunday, August 4, I analyzed a TV Show and product placement was spotted: Diet Dr Pepper in Preacher – Season 4, Episode 2 (2019).Here are 2 image(s) below: