That didn't catch my ear, but I did notice that Buzzr skipped episodes 319 and 320 to get to today's episode. Episode 319 can be found on YouTube in the form of a VHS copy of a GSN recording and near the end, the tracking briefly slips a couple of times. The GSN bug stays in place, so it was a problem with the master tape and not the VHS recording. I assume that's why Buzzr skipped over that episode.
During today's episode, there were a couple of smaller video problems near the credits. My hunch is that we've hit a little patch where the master tapes are showing their age, so the audio problems may not be Buzzr's fault.