After looking at sound last week, Brian attempts to follow through by "listening to light". But is that plausible or should he just took at sound again? After all, listening to light seems uncomfortably close to laboratory physics, and he doesn't have the prerequisite white coat.
Surprisingly, Brian finds himself official! Yes, the college principal has reinstated him - with the proviso that the doesn't talk about rock music. Instead he has to deliver a lecture on the last Norman king of England, "King Steve". Or does he?