This episode is somewhat dark with Homer getting fired from the nuclear plant and contemplating suicide until he finds his new calling - 'safety guy'. The story isn't great but it fulfills its purpose, which is to establish Homer's vocation. It's been a while since I'd seen this one; as a result I had completely forgotten that there was actually a story behind Homer's position at the plant.
The episode is mostly notable for having a number of first appearances, including Otto, Smithers & Chief Wiggum. Smithers is oddly colored due to what I assume must have been a slip-up in overseas animation. It's not that much of a distraction, though, considering that the entire show's animation style has changed dramatically since these early episodes.