Proof that a sometimes a quirky plot point will help viewers keep a product fresh in their memories: this Nielsen chart that ranks the most-remembered such placements this year, with number one going to a moment that does live on for us: "Sheldon [the character with Aspergian-like phobias] uses hand sanitizer [Purell] after he puts a live snake in a desk drawer" on "The Big Bang Theory."
Indeed, that show had the most slots -- three -- of the 10 such moments on the list. So, is another lesson here that it pays to show science geeks using your products?
And, in another chart, the show that had the most instances of product placement? "American Idol." Duh.