The 2 TB HDD, rather than connecting it to TV, try and connect it to some USB enabled router (it looks you already have settled your Internet). I currently have my 1TB HDD connected directly to USB of TV and everytime I need to update content on the HDD, I need to unplug it from TV, connect it to my laptop. Its sort of in-convenience. Also, my phone, iPad, wife's phone can't connect with that HD while it is plugged into TV.
I have been planning to get a router with USB where I could plug my HD and have all Wifi enabled devices of my house perform 2-way communication, meaning, me and my wife can simply offload or upload data from our phones to that HD and TV could get the content from it too. That USB HD can work as single sync point for all content of my house.
Oh BTW, I still get software updates on my Sony. I typically use YouTube and HD extensively and haven't touched other features/apps that are there. So I am not sure how good a use the Android is in TV.
I am a normal typical consumer and not an audiophile who could spend tonnes of money and time on setting up an ideal system for divine experience. So my taste need not to match with everyone else.