I stumbled across the share to Xbox functionality on my surface RT after downloading an "Edge" episode. Utterly brilliant for downloaded material
I'd be surprised if this hasn't already been suggested, but a native Xbox app or apps for Microsoft's various video content would be something I would use often. I would rather watch content from TechNet and channel9 that is about demoing features (rather than reading code samples) on my TV than on my tablet or PC.
Alternatively (possibly better and easier) adding "play to' functionality to the Channel9 app would be great.
Who to suggest it to?.....