http://www.youtube.com/watch?v=TRYQonwjgBQ
What the hell, I did not know these things even existed...
Edit: Damm spelled lectures wrong...

Yep. They're pretty obscure though, and don't always happen for everybody. For example: In order to trigger a lecture, I have to stand around inside for several hours before hand or they won't start. Can't use the wait system either.