Yes, the one you probably watched a few weeks ago was one that I published a couple months ago which just gave a basic introduction and only covered the Views aspect of Backbone.js.

This new one I just published a couple days ago, and it's a longer screencast that demonstrates how to build a complete Backbone.js application from the ground up, using a live coding format. All major aspects of Backbone.js are covered including Views, Routers, Models/Collections, Templating, etc.

Hope that helps.