After 23 years, 500 episodes and billions of d’oh!’s later, money disputes have shown Fox studio executives ready to pull the plug on their beloved The Simpsons.The Daily Beast’s Lloyd Grove reports today that a negotiating impasse between studio executives and the actors who voice the Simpsons‘ characters might be end game for the longest running sitcom in the history of broadcasting. Hoping to cut production costs, 20th Century Fox higher-ups have asked the show’s six primary voice actors to accept a 45 percent pay cut, threatening otherwise to end the series for good with the current and 23rd season.