Where can I find interesting .Net screencasts ? (F#, IronRuby, IronPython,...)

I'm looking for interesting screencasts targetting .Net (no podcasts) to extend what I already propose on my screencast aggregator at http://www.learnivore.com.

Can you help me find the most interesting ones you'd be aware of ?

Those I already know:

• http://www.dimecasts.net
• http://www.monotouch.info (.Net development on iPhone!)
• a series of 4 F# screencasts I can't find back
• plus another one I can't disclose yet

I tend to开发者_如何学Go avoid conferences, talks or recordings with poor sound quality - I mostly keep content "à la PeepCode", hands-on material.

Thanks for your help!

There is some good stuff at DNR tv. It is a weekly show on a variety of .Net topics.