DS9 "Babel" S1E5
Star Trek The Next Conversation - a semi funny trashfire of a Star Trek podcast currently about TV's Deep Space Nine DS9 (or TNG) - Een podcast door Matt Mira and Andrew Secunda
The crew of DS9 contracts a virus that makes it impossible to speak or understand each other. Matt and Andy must've contracted this years ago. Episode discussion begins around the 0:46:00 mark