Description by couchtuner for The Simpsons Season 19 Episode 14 : Bart and Lisa pull a prank on Martin Prince that goes terribly wrong and they become burdened with guilt over Martin’s untimely death. Meanwhile, Marge hires an investigative television show to follow Homer around after she suspects him of cheating on his diet.
Watch It Here : The Simpsons Season 19 Episode 14 Dial ‘N’ for Nerder