Damian Mehers in Switzerland has created two great screenscasts outlining how he created the BBC Radio experience.
Part 1 is a great companion to the Step-By-Step walkthrough in the SDK. Damian provides an excellent tour of the most commonly used application template which novices to Media Center development will find very helpful.
Part 2 demonstrates how Damian modified the template to achieve the BBC Radio solution.
Thanks for taking the time to put these together for the community, Damian -- they are wonderful learning resources!