At next week’s 2010 National Association of Broadcasters (NAB) Show in Las Vegas, 
Microsoft is working with system-on-chip (SOC) partners Intel and Broadcom to deliver support for reference designs with native Silverlight support.
This includes capabilities such as adaptive bitrate streaming over standard Internet connections, DVR-like capabilities, and support for Microsoft PlayReady digital rights management.
Microsoft also unveiled plans for the next version of IIS Media Services, an integrated HTTP-based media delivery platform built on Microsoft Windows Server that enables customers to cost-effectively deliver, monitor and monetize live and on-demand media content across enterprise, consumer and broadcast scenarios.
http://www.microsoft.com/silverlighthttp://www.silverlight.com