Yes in its day, it was a beacon no doubt. Now it is an anachronism. Today you have a channel in the Net which gives us sound and importantly, abundant user experience of every piece of gear, not to mention tips on use and getting the best from it. The abundance of interviews belie the very ephemeral and frankly 'top of the head' nature of artists just promoting their latest product. And as for the ads... well, who has the deepest wallet speaks the loudest. Well done Warwick.
Move on... it's day is over, like the wider (rock) musical environment...
P.S. regarding the lessons, there has never been more access to granular, virtuoso lessons on every aspect of bass playing... viva SBL..