Why are you getting modded insightful? There is no fucking single solution out there, that has the magic bullet, if there can't be no single person doing anything to maintain it.
OP wanted a cheap, simple easy to maintain solution, one was offered. People suggesting dedicated IT guys are fucking idiots, if they think that matches cheap.
And yes, my solution is complicated, if you don't know how to read howtos, but then again, you are out of luck, if you want it cheap.
And regarding server setup and maintenance, if you think that is expensive, then you sir are delusional. You can get 5 9's cloud based hosting with excellent support for very little money; and yes, someone needs to update it from time to time, but if that can't be done, there is nothing to do.
No matter if you select TV, iPads, Macs, Windows or magic unicorns, you will have to have some software update from time to time - and it sucks no matter which one you select. Personally I think the TV option is the worst, as there is very little reason for Samsung, Sony, et. al. to push updates to old televisions, they will just tell you to get a new one, when you favorite Skype(ish) app decides to change protocol.