Product Placement Blog ➞ Coca-ColaDiet Coke Cans in The Staircase S01E03 “Voids Part I” (2022)May 5, 2022 Sergey TV Show Hi! On Thursday, May 5, I watched a TV Show and product placement was spotted: Diet Coke Cans in The Staircase S01E03 “Voids Part I” (2022).