I bought 2 smart TVs recently and was able to turn all this BS off by simply not accepting the privacy policies during setup. Of course this means you can't use the built-in netflix apps or check for software updates or whatever but that's fine by me. I left both on my network for a period of time as well to check (via DPI) and indeed neither one was actually doing anything on the network other than pinging a software-update server every few days.