Long-running TV shows are bound to have an episode or two that isn’t essential to the plot. Some shows run for years across many seasons, so a few episodes are going to be just plain skippable. Anime, especially, suffers from these skippable episodes, which can even elongate into long-running arcs, turning large chunks of seasons into filler. And in the case of shows like Naruto Shippuden, filler episodes can accumulate so much screen time that wading through it feels needless and frustrating.