I routinely call them dumb TVs too, but they truly are the smartest choice. A TV costs $500, a Chromecast/Apple TV costs, what, $50? In addition to the price advantage of decoupling your TV from your "tuner," who is going to continue to support your device? Apple? Likely for perpetuity. Google? For some years at least. Samsung? Enjoy the only firmware that will ever ship for that device.

Don't buy smart TVs, they are practically stupid.