[cmos]

I'm pretty sure I had to download silverlight to watch netflix movies on my Mac.

[stormideas]

Netflix are using Silverlight for their streaming service, see http://netflix.mediaroom.com/index.php?s=43&item=288 for details.

[staunch]

Not a good example. Netflix would have chosen Flash probably if it wasn't for a special deal with Microsoft. They traded something in exchange for choosing an inferior solution (inferior in that it requires a download).