One of the oldest and most notorious Simpsons conspiracies is the mystery of "Dead Bart." The conspiracy states that an episode of the show is "lost" and was never to be seen by the public - except for a single fan who claims to have seen the episode, and shared details with the public. We've covered many Simpsons conspiracies here, but this is a FIRST. So, grab your pink donuts as we break down WTF is "Dead Bart"?