Product Placement Blog ➞ BicyclesKlein Bicycle in Seinfeld Season 7 Episode 9 “The Sponge” (1995)December 10, 2019 Sergey TV Show Hi! On Tuesday, December 10, I watched a TV Show and product placement was spotted: Klein Bicycle in Seinfeld Season 7 Episode 9 “The Sponge” (1995).