Product Placement Blog ➞ Century Martial ArtsCentury Punching Bag in Cobra Kai S04E04 “Bicephaly” (2021)January 1, 2022 Sergey TV Show Hi! On Saturday, January 1, I watched a TV Show and product placement was spotted: Century Punching Bag in Cobra Kai S04E04 “Bicephaly” (2021).