Is Chromecast anything like Google TV? Google TV is more like a Smart TV in an external box (or indeed integrated with Smart TVs); it takes your cable/satellite as input and provides features to go with that. Chromecast is more like Miracast; you tell it where some content is and it displays that on your TV.
They seem like they are the same thing, but are actually different.
There's also a third Google product for your TV, the Google Fiber TV Box. As I understand it, its compatibility with and similarity to either Chromecast and Google TV is low.
They seem like they are the same thing, but are actually different.