You'll have to get Panasonic to add that function if you want it directly on your TV. MC makes you able to stream MC's local content on your TV with DLNA. But it would be hell of a lot of work passing services like Netflix through the server, and to your TV. As you say, Netflix works in Theater View. That's the intended way. DLNA is just a limited way of controlling your media in a simple way. It gives you a limited set of options.
The way to ensure that you can do it all, would be to primarily use an HTPC connected to your TV. Drop DLNA. It's not evolved enough yet. That's at least my opinion
