All These are possible however I cannot say if they are compatible I am using a netgear stora NAS works perfectly with 7 hard drives attached to it. Pretty much just set it up on your network and then go to network shares on you hub and you can either view it as folder structere or sync it to media library and all should be good to go
The Live Hub will not stream to other TVs, only to the one it is physically connected to. You could split that signal and run it via HDMI cable to another TV, but the Live Hub is not technically designed for connection to more than one device.
How do you physically direct the Live Hub output to another device? If you mean that a networkable TV can see the content on the Live Hub and access it, that’s a long way from the Hub being able to output to a second device, which is what was originally asked. In that case you would be using the networked device’s interface, and not the Hub’s, to access and play that content.