People Learn What Words Mean Challenge 2025. A "filler" episode is not what happens when you aren't served wall to wall action and drama. Nor is it when it doesn't meet your expectations (that's 100% a personal issue). The 8-10 episode plot-driven series that streaming sites have been giving us _never_ have "filler" episodes. That term comes from 24 episode seasons when there would be, say, an episode full of clips from previous episodes. THAT is a "filler" episode. /rant Skeleton Crew