Bart of Darkness - Production

Production

Dan McGrath was chosen to pen the episode, while Jim Reardon directed. The episode was originally produced as the season finale of the fifth season, but was held-over and aired as the premiere of the sixth. This was because, along with "Lisa's Rival", the episode was in production at the time of the Northridge earthquake of 1994. The earthquake damaged much of the Film Roman building in which The Simpsons writing and animation staff worked, forcing them to move out for three months and continue production in a temporary building. David X. Cohen came in the weekend after the earthquake to see what had happened, as was told that "it was no more dangerous than it was before the earthquake," as the building was "a ninety year old, decrepit shack." The only staff members that came in expecting to work were future show runners Bill Oakley and Josh Weinstein. As a result, the staff were given a month more than they would usually have had to work on the episode, which Reardon described as "greatly benefiting" it. Having been a director on the series for five years before this episode, he believed that this "was closer to what was trying to achieve as a director then had done before." He credited this to the extra time, and used it to insert little details, such as having Bart get stuck on the fabric of the chair he was in, and wearing his underwear instead of a swimsuit.

Many of the heat wave jokes at the start of the episode were based on past events of the crew's lives. The sitting in front of the fridge-freezer joke, came from McGrath, who had done a similar thing as a child. The Springfield Pool-Mobile was based on a similar vehicle from David Mirkin's childhood, where a truck with a "spinning cars" fairground ride on the back would often come around his neighborhood. Flanders' feminine scream was performed by Tress MacNeille and not his regular voice actor Harry Shearer. Krusty's mispronunciation of Ravi Shankar's name was an ad-lib, that Mirkin kept in after the editing process because he liked it so much.