I would say not..

Hello Wayne,

I would say not, I haven't owned one myself, but from what I gather, Smart TVs don't use open networks that allow just anyone to put up content like a Desktop or laptop computer does, chances are the TV itself uses streaming (which doesn't require video downloads), or the sources of these files are determined by your cable provider, they also would likely have their own operating system, much like a Playstation 3, Xbox 360 or Nintendo Wii would, and that would make them a less likely target for viruses or even hackers.

But it's always worth asking a manufacturer or cable provider these things, especially in matters of cyber security.