I see DNS issues with SmartHub, etc.. but I don't see anyone suggesting that Samsung is capturing image data and sending it back? Not saying they aren't, but as an owner of two Samsung TVs, I'd be interested in any real evidence of them doing this type of thing..
However, as far as anyone has shown, that audio data is only when the user uses the voice functionality on the TV. They just were bad about encryption, but to use voice search, it made sense that they were sent data. That is remarkably different than recording image data every second from every television and sending that back.
Not saying it's the same, just saying it's a potentially questionable (re privacy) thing Samsung has already been caught doing.
Not sure if they were selling any of those data, anonymized or not, either.
edit: It's also worth pointing out that while technical people (e.g. us) may see voice recognition tech and immediately suspect that it involves phoning home, most people probably have no idea that anything of what they say is leaving their living room.
It's in the privacy/TOS section on the Samsung TV I bought from Costco 3 months ago.
"Interest Based Advertisement. Samsung provides the ability to obtain and view interactive and interest based advertising on your Smart TV. Interest based advertisements will rely on your TV viewing history and Smart TV usage information. Your viewing history includes information about the networks, channels, and programs viewed on your Smart TV and the amount of time spent viewing them. We may use automatic content recognition (ACR) and other technologies to capture this information."
It is opt-out, and it's buried a couple levels deep in the menus.
( See comments about said Samsung TVs ) - https://news.ycombinator.com/item?id=13581771