I think it's a reasonable approach, especially for someone busy with all kinds of things, to focus on a video or podcast once a week rather than many blog entries. The same is true for your audience, especially if they are like you, constantly busy with all kinds of things, as I know I will be. It'll be nice to have an hour so every week that I can look forward to, and set some time aside to really focus and listen to you. The part about the transparency you mention, I think is fantastic. Such a great approach!