Not really it doesn't. I don't know a whole lot about home entertainment. I know enough to talk about it, but I wouldn't consider my self an expert, hence why I stated "as far as I know". Now if we were talking about food, or lacrosse, or some other things, that would show what I know.
And I disagree. I'm perfectly content with just regular deffinition, so I could easily do a home theatre without it.