Maybe the very new ones? I've actually got a relatively new Roku TV (only about a year and a half old), and it works just fine without the wifi password.

Only thing that annoys me about it (and probably would have gotten me to buy a different model if I knew) is that this TV has zero physical buttons. Zero. It doesn't even have a power button! The only way to control it -- even just to turn it on and off -- is with the remote. If you lose the remote, the TV is bricked. (I understand omitting physical buttons to cut costs, especially on a budget model like this one, but IMO, it's still essential to have a power button and an input switching button as physical buttons on the TV itself.) In any future TV purchases, I'll be specifically checking to make sure they have a physical power button at least. Didn't even check for it when I bought this TV because it didn't even occur to me that a TV might not have a power button.