Why NBC dumped Silverlight for Flash?
The Olympics online were a joint production between NBC and Microsoft, and an opportunity for Microsoft to build a user base for Sillverlight, its new media player. But Flash has a much larger installed base – it’s installed on 98% of Internet-connected desktops, and is pretty much the standard for all mainstream Web video. During the Olympics, 40 million US to visitors NBCOlympics.com didn’t yet have Silverlight installed.
However, NBC dumped Silverlight in favor of Flash for live streaming of Sunday Night Football this fall.