Yes, you can plug in the Clickfree device in your TV as long as your TV has a built-in USB Port.
But for now, you can't download and use the Clickfree App with TVs, for it is not yet an available feature
All you need to do is to treat the Clickfree as a normal flash drive. Our developers are still making some updates and we will post an update once we have this Application available for Television.