RiffTrax
RiffTrax, the successor to MST3K, seems to have slipped past Brent, so it may have slipped past you too!
RiffTrax are audio commentaries done by Mike and other stars from the show MST3K. You buy the trax and then start the trax and movie at the same time, they helpfully provide instructions on how to sync them up at the beginning of each trax.
They are all completely, wonderfully hilarious and the best part is that since they don’t need to secure broadcast rights they are free to riff on new and popular movies. Sarah and I give a big thumbs up to their X-Men rifftrax.