When I started the podcasting program at Tulane's med school after Katrina, we were at Baylor. I was in the audio booth when one of the techs realized he hadn't recorded the Baylor prof's lecture. He ran up front and asked him what to do. His direction: "just post last year's recording."

That said, my mom teaches math a community college and she teaches in a very particular style (good German upbringing). Her first semester teaching any particular course involves a lot of late nights.