The music used for the intro is a heavily edited version of "Alive And Amplified" by The Mooney Suzuki. For the radio series, it is Acker Bilk's "Stranger on the Shore". See more

Goofs

The boom mike is visible over the Director when he's sitting in front of his monitor in the "Now we know" sketch. Interestingly, it's a sketch about making a film, so there was equipment that was clearly intended to be seen, too, which probably made it confusing. See more