Terry wants to buy a device to cast to his home office TV. Would the Chromecast work or should he buy the FireTV Stick? Leo says that the Chromecast is a great device, but it doesn't stand on its own. He'll have to navigate to what he wants to watch on a phone and then cast to the Chromecast device. Stand-alone devices like Roku and AppleTV can act as their own independent devices. As for FireTV, Leo says it really serves as a portal to sell stuff from Amazon, so he's not much of a fan. Leo says ROKU Ultra is a better choice all the way around and will also stream in 4K. The Roku stick, however, is underpowered and tends to overheat.