User blog comment:Thailog/Ep. 205 "Beneath" discussion/@comment-432124-20120526204619/@comment-432124-20120527202147

What filler episodes? The only true filler episode that we saw in Season 1 was Secrets, and even the B-plot of that is bound to affect Mal Duncan and Bumblebee's relationship with Superboy and Miss Martian. If you look at the continuity sections of the episode pages in Season 1, you'll see that each episode has some minor detail that affects the plot of at least one of the later episodes.