Figuerres,
Sounds like you are hungry for some full screen content
The implmentation of the NBC Silverlight player has a mode called Enhanced, that will take you into a fuller 16:9 screen. We don't go true full screen for a few reasons, one of which we don't want to stretch the video. The resolution you see in most cases is native aspect and size of the source encode - thus it looks super clean, no blocking, etc.
Make sense?
Also in enhanced mode you can do PIP and live commentary - enjoy!
-Eric