Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I think the ability to have just the video play on the Chromecast/TV and the audio via the speakers from the computer would be fantastic. I have much better speakers on my computer than on the television and I'd enjoy this feature addition.