Friends cast walking down street - Getty Images/Getty ImagesOf all the Coke Super Bowl commercials, the "Friends" Diet Coke Super Bowl ad campaign had quite a cultural impact. One can argue that part of success is taking risks, and that's exactly what "Friends" Season 2 did with a Diet Coke Super Bowl ad campaign. it was crime-themed, using the set-up that someone stole Diet Coke from Monica and Rachel's apartment. For several weeks leading up to the Super Bowl, fans were instructed to buy specially packaged Diet Coke bottles and watch the commercials that aired during "Friends." Read more: Diet Sodas, Ranked Worst To BestDiet Coke Sales Went Up, But Viewership Went DownCans of Diet Coke on a table - Alexi Rosenfeld/Getty ImagesThis campaign was more of a win for Diet Coke than for the sitcom.
