How to Change the Screen Saver on the Chromecast with Google TV Dec 30, 2020, 11:40 am EDT | 2 min read The Chromecast with Google TV blends the concepts of Chromecast dongles and Android TV devices. That means they have both “Ambient Mode” and screen savers. We’ll show you how to use both, which requires some digging. In order to merge Chromecast and Android TV, Google shifted a lot of stuff around. However, Google TV is built on Android TV, so all of the Android TV settings are still present. One example of this is the screen saver. RELATED: The Chromecast with Google TV’s screen saver is called “Ambient Mode,” and it ties into the setup process that takes place in the Google Home app. Ambient Mode can be either a Google Photos slideshow or an Art Gallery.