A new episode of the Media Center Show has been posted today that focuses on Media Center Markup Language (MCML) development. I talked with Ian Dixon a few weeks ago, and he decided to create a 2 part show based on our talk (part 2 will be coming next week).
The first part focuses on getting started if you are new to MCML development. It includes a discussion of some of the learning tools and samples included in the Windows Media Center SDK (such as McmlSampler and the Q sample podcast and videoblog client).
In addition, Ian posted a Media Center Show Extra segment where he presents an overview of both McmlSampler and Q running within Windows Media Center.
Here are links to both the show and the extra segment:
Hopefully you will find this information useful as you get started with Windows Media Center development.