So let's think a moment...
Firstly a lot of the people watching this are going to be Security Professionals who will be screaming at the TV "Jeez, man, talk about stating the bloody obvious" as someone finds a Post It with a password on the side of someone's monitors and the dramatic voice over says "You should never do this!"
Secondly most of the others are going to be Script Kiddies and wannabe HaX0rs who will be taking notes.
Of course the people who *REALLY* need to get a clue aren't going to be watching this anyway, because "well, it's computers, boring, innit?"
Oh, and where the preview says "These people are not criminals", I'd love to see them explain that the techniques they are using *aren't* criminal given what people have been arrested for...