A preview version of the new Channel 9 is now available at Please file any bugs or suggestions on Connect.   Mike Sampson (aka Sampy) has done some stellar work with the backend architecture and design of the next version of Channel 9, code named "Rev9," and this fifth version includes a revamped UI and restructured backend.   In this conversation (it’s a long and deep one, so set aside some time—it's well worth it), Sampy takes us through how and why he designed the new Channel 9 architecture. "Rev9" appears to be a very scalable and modern system built on tried and true technologies and architectural patterns such as MVC 2.0, Unity (from P&P), NHibernate, Fluent NHibernate, Memcached, Enyim Managed Memcached driver, Azure – Fabric, Storage, Diagnostics, SQL Azure, xUnit (testing only), Live ID, Spark View Engine, Akismet (spam filtering service), AntiXSS, Tinymce, jQuery, and Silverlight. Sampy's great work is simply astounding. I left his office feeling more confident than ever that Channel 9 will scale to the future and the experience of performance and reliability will be at an all time high. Thank you, Sampy, Duncan, Cara, Geoff, Clint, and Dan. The revolution is now televised and in full swing.