This is what I don't like about this whole "smart" era we're entering into. Now you buy a smart TV or a smart phone or any other "smart gadgets" and you don't even know if it will receive any security updates in 1 year. It's terrible.
It'll get legislated against in one way or another once a nations worth of TV's start DDOSing the rest of the world. As usual, politicians will have to actually see the problem before they act on it though.
I absolutely agree that there must be regulations for smart devices regarding security updates. I mean, Google is releasing security updates for Android for FREE and lots of OEMs don't even bother to update their phones. Unbelievable.