Product Placement Blog ➞ Breakfast CerealsPost Great Grains Cereal in Insecure S04E09 “Lowkey Trying” (2020)June 8, 2020 Sergey TV Show Hi! On Monday, June 8, I watched a TV Show and product placement was spotted: Post Great Grains Cereal in Insecure S04E09 “Lowkey Trying” (2020).