I've learned to dissociate backlog from being caught up. If the end-of-year voting ends and I haven't listened/read a story, I drop it into the maybe-someday pile. That said, since 2010 not a single EA cast has fallen into that pile.
And I'm posting because I'm extra proud of myself this year: by forcing myself to catch up with each 3-month period as they come along (instead of 100-podcast-December), I'm up to date through October on EVERYTHING. (Clarkesworld, Drabblecast, Pseudopod, Podcastle, Escape Pod, Tales To Terrify, Lightspeed, Beneath Ceasless Skies, The Bugle).
I gave up on Starship Sofa a few years ago because they are so damn bloated and I have too many other podcasts, but I've been doing well with Tales To Terrify, so maybe I could handle the format better now.
I'm about 2 hours from being caught up on all the stories for this year on EA, now I just have to comment on them...
And read six months worth of F&SF and Asimov's...