I wasn't quite sure what to expect from Jeff Gothelf's "Lean UX Workshop" but having worked my way through the videos I can say that it was a phenomenal use of, approximately, 3.5 - 4 hours.
The format of the videos is actually somewhere between a workshop and a lecture. Gothelf lays out quite a bit of theory regarding Lean and Agile, and especially how to integrate design into the process of iterative development. Much is made of the fact that all of these processes are focused on delivering real value through learning, at each step, whether what we're proposing to build both addresses a genuine need and goes some way towards solving that need effectively. This is accomplished through approaching more or less every step of the process as hypothesis testing.
To recap this theory, and as a long term reference, I think I'm going to be buying Gothelf's book on the Lean UX process.
The workshop segments of the videos were, to me, invaluable. They really act as an example of how one can practically run a workshop of this kind as Gothelf runs the participants in the video through a set of exercises designed to focus the team by helping them reach a consensus about what's important to be working on, as well as building a shared vocabulary / understanding that ensures that they work in the same direction.