Feels like running it through an HTPC keeps being the superior option.
You can not connect your TV to the internet and not use the smart features.
My problem with smart TVs is less so with the connectivity and more so with how unresponsive the UIs tend to be. Unless those two things are directly related, in which case maybe I should consider disconnecting mine from the Internet, I guess.well, smart or not. The TV has to be actually connected to the internet to get infected.
so, uhm... just do not connect it to the internet.
(I think)
edit: yeah, beaten above